Entries |
Document | Title | Date |
20080211729 | TWO-WAY ANTENNA CONNECTOR - A system includes a first matching network having a first impedance and a second matching network having a second impedance, where the second impedance is different than the first impedance. The system further includes a switching connector having first and second switching positions, where when the switching connector is in the first switching position an input terminal is connected through the first matching network to a first antenna and where when the switching connector is in the second switching position the input terminal is connected through the second matching network to a second antenna and the first antenna is connected to ground. | 09-04-2008 |
20080218428 | WIRELESS COMMUNICATION DEVICE AND SIGNAL RECEIVING/TRANSMITTING METHOD THEREOF - A wireless communication device using a single spiral inductor antenna and a signal receiving/transmitting method thereof operated on multi-band are provided. The single spiral inductor antenna is designed to have a plurality of different inductance paths. Different inductance values are inducted with signal paths switched by a plurality of switches so as to meet the requirements of multi-band operation. As the circuit structure of the single spiral inductor antenna is used, the circuit area is reduced effectively. | 09-11-2008 |
20080224942 | Antenna Device and Portable Radio Communication Device Comprising Such an Antenna Device - The present invention relates to a portable radio communication device operable in at least a first and a second frequency band, the antenna device comprises a first electrically conductive radiating element comprises a first feeding portion connectable to a feed device (RF) of the radio communication device for feeding and receiving radio frequency signals, a ground plane provided at a distance from the first radiating element, a DC-blocking device connecting the first electrically conductive radiating element and the ground plane at a first position, and a controllable switch connecting the first electrically conductive radiating element and the ground plane at a second position. | 09-18-2008 |
20080224943 | INFORMATION PROCESSING APPARATUS WITH ANTENNA SWITCHING FUNCTION, COMMUNICATION APPARATUS, ANTENNA SWITCHING CONTROL UNIT, ANTENNA SWITCHING CONTROL PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM RECORDING THE SAME PROGRAM - In an information processing apparatus such as a notebook type personal computer having radio communication functions, for communication units to simultaneously carry out transmission/reception independently of each other without increasing the number of antennas, and for sufficiently utilizing a diversity function in the case of only a portion of the communication units, there are provided antennas, communication units capable of carrying out radio communications through the use of the antennas, respectively, and a switching unit for switching connection states between the antennas and the communication units. When radio communications are simultaneously made through the use of all the communication units, the switching unit establishes connections between the communication units and the antennas while, when radio communication is made through the use of the communication unit, the switching unit connects the antennas, the number of which depends on communication modes of the communication unit, with this communication unit. | 09-18-2008 |
20080238807 | Dual antenna topology for Bluetooth and IEEE 802.11 wireless Local Area Network devices - A method includes determining that an antenna shared between a Bluetooth transceiver and a WLAN transceiver is available to the WLAN transceiver based on an activity signal associated with the Bluetooth transceiver. Access to the shared antenna is provided to the WLAN transceiver based on the determination, and the WLAN transceiver is configured to use diversity in transacting WLAN signals via a plurality of antennas, including the shared antenna. Access to the shared antenna is transferred from the WLAN transceiver to the Bluetooth transceiver based on the activity signal. | 10-02-2008 |
20080246684 | VARIABLE-DIRECTIVITY ANTENNA - A variable-directivity antenna according to the present invention includes at least three linear passive elements, which are arranged parallel to a Z-axis so as to surround a feed element. Each of those passive elements includes at least two element pieces, etc. that are arranged parallel to the Z-axis and switching elements, etc. of a first type. The passive element assembly further includes at least one switching element, etc. of a second type that makes two adjacent passive elements electrically continuous with each other when turned ON but electrically insulates them from each other when turned OFF. By turning ON and OFF the at least one switching element of the first type and the at least one switching element of the second type, the antenna can change its directivities. As a result, a linear variable-directivity antenna, which can change its radiation directivities within a vertical plane and of which the overall length in the longitudinal (or major-axis) direction does not increase excessively due to the presence of the passive elements, is realized. | 10-09-2008 |
20080258993 | Metamaterial Antenna Arrays with Radiation Pattern Shaping and Beam Switching - Apparatus, systems and techniques for using composite left and right handed (CRLH) metamaterial (MTM) structure antenna elements and arrays to provide radiation pattern shaping and beam switching. | 10-23-2008 |
20080291113 | ANTENNA SWITCHING SYSTEM AND RELATED METHOD FOR SWITCHING BETWEEN FIRST AND SECOND ANTENNAS HAVING DIFFERENT GAINS - An antenna switching system for switching between a first antenna and a second antenna, where a gain of the first antenna is different from a gain of the second antenna, is disclosed. The antenna switching system includes an antenna switch unit and a switch control device. The antenna switch unit is selectively coupled to the first antenna or the second antenna. The switch control device is coupled to the antenna switch unit and utilized for controlling the antenna switch unit to switch between the first antenna and the second antenna according to at least a predetermined threshold value and an incoming wireless signal received from the antenna switch unit to achieve some purposes such as reducing power consumption and anti-jamming. | 11-27-2008 |
20080303739 | INTEGRATED MULTI-BEAM ANTENNA RECEIVING SYSTEM WITH IMPROVED SIGNAL DISTRIBUTION - An integrated multi-beam antenna receiving system controls signal flow to a set of frequency translation devices in order to provide the required signals requested by Integrated Receiver Decoder units (IRDs, or set-top-boxes) within the home. The receiving system is compatible with legacy IRDs, or can support delivery of the requested signals in digital format allowing single coaxial cable or twisted pair delivery into the home. The system supports satellite reception from a mixed constellation of Direct Broadcast Satellites (DBS) and Fixed Satellite Service platforms operating in multiple frequency bands. | 12-11-2008 |
20080316142 | MULTIPLE-INPUT SWITCH DESIGN - A switch designs having very low insertion loss, in which the insertion loss remains the same regardless of the number of inputs. A plurality of inputs are structured for receiving electromagnetic radiation signal having a wavelength λ. A plurality of switches, e.g., PIN diode switches, are coupled to a respective input. A main conductor is coupled to an output. A plurality of leg conductors are coupled at one end to the main conductor and at other end to a respective switch from the plurality of switches, wherein each of the leg conductors has a length substantially equal to nλ/2, wherein n is a whole natural number. | 12-25-2008 |
20090002258 | EXTENDIBLE ANTENNA STRUCTURE AND SWITCHING ARRANGEMENT THEREFOR - A mobile communication device ( | 01-01-2009 |
20090002259 | Switch arrangement - A single pole N throw (SPNT) switch arrangement including: a pole, one or more throw nodes and a switch mechanism arranged to connect the pole and a first throw node in response to a first signal and to disconnect the pole and the first throw node in response to a second signal; an interconnect, for providing the first signal, arranged for connection to the pole when providing the first signal; and a dc power source arranged to control a dc bias applied to the interconnect to provide the first signal | 01-01-2009 |
20090015508 | Switching device with reduced intermodulation distortion - According to one exemplary embodiment, a switching device with phase selection terminals to select between at least two phase shifting modes to reduce intermodulation distortion in the switching device includes a first phase selection terminal to select a first phase shifting mode of the switching device by enabling a first phase shifter in a first phase shifting switching branch coupled to an input of the switching device. The switching device further includes a second phase selection terminal to select a second phase shifting mode of the switching device by enabling a second phase shifting switching branch coupled to the switching device input. The intermodulation distortion in the switching device is reduced by selecting one of the first and second phase shifting modes. The switching device may further include a number of FETs coupled in series between an output of the switching device and the first and second phase shifting switching branches. | 01-15-2009 |
20090033581 | REMOVABLE MEDIA SPINDLE AND ANTENNA ASSEMBLY FOR PRINTER - A removable spindle for use in a thermal transfer printer houses dual RFID reader antennas that are used to read an RFID tag attached to the core of the print media. The information provided by the RFID tag enables the printer to self-calibrate based on the type of media loaded. The antenna design eliminates “null” areas at which the tag cannot be read, and enables the tag to be read around and across the entire length of the printer spindle. The design also allows the media holder to be easily removed from the printer. | 02-05-2009 |
20090051618 | MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) ANTENNA SYSTEM ADAPTABLE FOR ENVIRONMENTAL MULTIPLICITY - A Multiple Input Multiple Output (MIMO) antenna system adaptable to an environmental multiplicity is provided. A MIMO antenna system includes a first antenna element, a second antenna element, a receiver for receiving at least one of different polarized signals through the first antenna element, a channel estimator for estimating a channel using a signal received via the receiver and a signal received via the second antenna element, and a correlation comparator for controlling the receiver to receive a specific polarized signal according to a correlation calculated from the estimated channel. | 02-26-2009 |
20090073078 | Systems, Methods and Apparatuses for High Power Complementary Metal Oxide Semiconductor (CMOS) Antenna Switches Using Body Switching and External Component in Multi-Stacking Structure - Embodiments of the invention may provide for a CMOS antenna switch, which may be referred to as a CMOS SPDT switch. The CMOS antenna switch may operate at a plurality of frequencies, perhaps around 900 MHz, 1.9 GHz and 2.1 GHz according to an embodiment of the invention. The CMOS antenna switch may include both a receiver switch and a transmit switch. The receiver switch may utilize a multi-stack transistor with body substrate switching and attachment of external capacitor between drain and gate to block high power signals from the transmit path as well as to maintain low insertion loss at the receiver path. Exemplary embodiments of the CMOS antenna switch may provide for 38 dBm P 0.1 dB at multi bands (e.g., 900 MHz, 1.8 GHz, and 2.1 GHz). In addition, −60 dBc second and third harmonic performance up to 30 dBm input, may be obtained according to example embodiments of the invention. | 03-19-2009 |
20090079657 | PRINTED MONOPOLE SMART ANTENNA FOR WLAN AP/ROUTER - A printed monopole smart antenna is provided. The smart antenna includes a monopole antenna having a plane for receiving and transmitting a signal, two conductors for directing and/or reflecting the signal to the monopole antenna respectively, and a circuit device electrically connected between the first and second conductors, for selectively switching the first and second conductors to determine an operation mode of the smart antenna. The smart antenna further has at least a groove in the ground for concentrating the current distribution and solving the influence of the antenna gain to the ground size. The sequence of the antenna pattern of the smart antenna is randomly arranged, depending on user's situation. When a plurality of printed monopole smart antennas are disposed on different directions of the WLAN AP/router, the omnidirectional radiation pattern will be obtained and the antenna gain will be increased. | 03-26-2009 |
20090096707 | ANTENNA ELEMENT AND FREQUENCY RECONFIGURATION ARRAY ANTENNA USING THE ANTENNA ELEMENT - A frequency reconfiguration array antenna includes a metal plate and a plurality of antenna elements. The antenna element includes a plurality of radiators and at least one switch for connecting the radiators, and a gain of at least one frequency bandwidth from among the plurality of frequency bandwidths reconfigured by the antenna elements is higher than gains of other frequency bandwidths. | 04-16-2009 |
20090096708 | ANTENNA DEVICE FOR PORTABLE TERMINAL - An antenna device for a portable terminal, in which a first radiator is installed within the portable terminal, a second radiator is elongated lengthwise and installed to be retractable into and extendable from the portable terminal, and a switch portion has at least one plate spring and connects a communication circuit portion of the portable terminal selectively to the first radiator or the second radiator. When the second radiator is retracted into the portable terminal, the communication circuit portion is connected to the first radiator through the at least one plate spring, and when the second radiator is extended from the portable terminal, the communication circuit portion is connected to the second radiator through the at least one plate spring. | 04-16-2009 |
20090102742 | MIMO ANTENNA AND COMMUNICATION DEVICE USING THE SAME - A multiple-input multiple-output (MIMO) antenna and an antenna system using the same are provided. The MIMO antenna includes a plurality of antenna elements in which a feeding unit is formed at one end, and another end is connected to a ground, and a connection unit which connects the antenna elements. | 04-23-2009 |
20090109117 | AUTOMATIC ANTENNA IDENTIFICATION AND CONFIGURATION, AND DEVICE INCLUDING THE SAME - An automatic antenna identification system is provided that includes a connector to which a plurality of different antennas tuned to different respective frequencies or frequency bands may be connected. In addition, the system includes circuitry that automatically identifies which antenna of the plurality of different antennas is connected to the connector based on the respective frequency or frequency band of the antenna. | 04-30-2009 |
20090109118 | DIRECTIONAL ANTENNA AND PORTABLE ELECTRONIC DEVICE USING THE SAME - A directional antenna and a portable electronic device using the same are provided. The directional antenna includes L-shaped radiator, L-shaped oscillator, and L-shaped reflector and it is preferred that the directional antenna is positioned at corners of the substrate. The L-shaped radiator is made resonant by the L-shaped oscillator and has higher gain to maximize performance of signal transmission. The directional antenna achieves signal transmission in a specific direction over a long distance by the L-shaped reflector. In addition, with the gravity sensor, the processor and the switches, the directional antenna is automatically adjusted to a predetermined direction to transmit and receive signals even through orientation of the electronic device is changing at any time. | 04-30-2009 |
20090135081 | MOBILE TERMINAL DEVICE, ANTENNA SWITCHING METHOD, AND PROGRAM - The present invention provides a mobile terminal device, an antenna switching method, and a program capable of realizing appropriate antenna switching compared to the conventional technique by coping with various use states in the antenna switching of a mobile phone including a plurality of antennas. A mobile terminal device including a plurality of antennas and performing antenna switching includes: a device state detection unit for detecting a device state of the mobile terminal device; an accessory connection detection unit for detecting an accessory connected to the mobile terminal device; a communication state detection unit for detecting a communication state of the mobile terminal device; and an antenna switching unit for selecting an appropriate antenna from the plurality of antennas and switching to it based on respective detection results detected by the device state detection unit, the accessory connection detection unit and the communication state detection unit. | 05-28-2009 |
20090140949 | SYSTEM AND METHOD TO IMPROVE RF SIMULATIONS | 06-04-2009 |
20090153432 | ELECTRONICALLY-CONTROLLED MONOLITHIC ARRAY ANTENNA - An electronically controlled monolithic array antenna includes a transmission line through which an electromagnetic signal may be propagated, and a metal antenna element defining an evanescent coupling edge located so as to permit evanescent coupling of the signal between the transmission line and the antenna element. The antenna element includes a conductive ground plate; an array of conductive edge elements defining the coupling edge, each of the edge elements being electrically connected to a control signal source, and each of the edge elements being electrically isolated from the ground plate by an insulative isolation gap; and a plurality of switches, each of which is selectively operable in response to the control signal to electrically connect selected edge elements to the ground plate across the insulative isolation gap so as to provide a selectively variable electromagnetic coupling geometry of the coupling edge. | 06-18-2009 |
20090174622 | Transmitter/Receiver Circuit and Transmission/Reception Method - There are provided a transmitter/receiver circuit and a transmission/reception method that can reduce the insertion loss of a circuit in a hybrid operation and are suitable for reducing the cost, size, and power consumption. An antenna switch | 07-09-2009 |
20090189828 | DEVICE, METHOD AND SYSTEM OF RECEIVING MULTIPLE-INPUT-MULTIPLE-OUTPUT COMMUNICATIONS - Some demonstrative embodiments include devices, systems and/or methods of multiple-input-multiple-output wireless communication. Some embodiments include an apparatus having a wireless receiver to receive a multiple-input-multiple-output wireless transmission, the receiver including a set of antenna elements having different polarizations to receive a respective set of wireless signals of the multiple-input-multiple-output wireless transmission over a respective set of different communication channels, wherein the set of antenna elements includes a first number of antenna elements; a radio-frequency module to handle a second number of wireless received signals, wherein the second number is smaller than the first number; and a selector to selectively provide the radio-frequency module with a subset of the set of wireless signals including the second number of signals according to at least one selection criterion. Other embodiments are described and claimed. | 07-30-2009 |
20090207091 | RECONFIGURABLE MULTIFREQUENCY ANTENNA WITH RF-MEMS SWITCHES - A self-similar multiband reconfigurable antenna includes a planar antenna structure formed on a surface of a substrate, the antenna structure including symmetrically opposed self-similar geometry antenna arms defining a self-similar or Sierpinski gasket configuration for each arm of the antenna. MEMS type switches are provided for operatively connecting adjacent antenna patches on each arm of the antenna configuration, and a voltage source is provided for selectively actuating the switches. Selective actuation of the switches enables up to four different antenna configurations each having a different resonant frequency, and wherein each resonant frequency demonstrates a similar radiation pattern. | 08-20-2009 |
20090207092 | COMPACT DIVERSITY ANTENNA SYSTEM - The present invention provides a compact antenna system having multiple antennas exhibiting polarization and pattern diversity. The system comprises at least two antennas which may have different polarizations, operatively coupled to a passive element which operates as a Balun for a first antenna and which is configured to absorb and re-radiate electromagnetic radiation from the second antenna to produce a desired radiation pattern. The present invention also provides for additional antennas operatively coupled to the passive element or to the first antenna to provide additional diversity. | 08-20-2009 |
20090207093 | METHODS AND APPARATUS FOR USING MULTIPLE ANTENNAS HAVING DIFFERENT POLARIZATION - A MIMO wireless communications device supports a dual polarized mode of antenna operation and a single polarized mode of antenna operation. Antenna mode selection is performed as a function of signal to noise ratio information and/or rank information corresponding to a communications channel matrix. One of a communications device's processing chains is switched between first and second polarization orientation antennas, e.g., vertical and horizontally polarized antennas, as a function of the antenna mode selection. In various embodiments, the dual polarized mode is advantageously used for high SNR users, while in the low SNR regime, where the capacity is limited by received power, the single polarized antenna configuration, sometimes referred to as the spatial MIMO configuration, is used. | 08-20-2009 |
20090262042 | DUAL-MODE ANTENNA DEVICE - A dual-mode antenna device ( | 10-22-2009 |
20090284438 | METHOD FOR CONTROLLING ANTENNAS OF MOBILE TERMINAL DEVICE AND SUCH A MOBILE TERMINAL DEVICE - A method for controlling antennas of a mobile terminal device such as a laptop PC and a handheld PC without degrading communication speed or quality and a mobile terminal device having such control means are provided. The method comprises determining the usage of the mobile terminal device, determining an antenna to be disabled among the plurality of antennas according to the usage that is determined by the determining of usage, and disabling the antenna which is determined by determining of an antenna to be disabled, wherein the determining of usage determines usage based on the display orientation of the display unit of the mobile terminal device. | 11-19-2009 |
20090289872 | High Power Ultra-Linear TDD Switch - The present invention relates to wide-band high output power ultra-linear TDD switch systems for receiving and/or transmitting signals that can meet wireless communication and base systems requirements. They comprise of an antenna; one or more circulators; and one or more signal ports where at least one of the circulators enables a selectable path for a signal between the antenna and one of said signal ports. This selectable path may be uni-directional. For antenna switches that receive and transmit signals, these switches may have two signal ports, one for transmitting signals and another for receiving signals where at least one of the circulators enables a selectable uni-directional path for a signal between the antenna and a signal port; and at least one of the circulators enables a selectable uni-directional second path for a signal between the antenna and a second signal port. These antenna switches are ultra-linear, have simple base station mechanical structure that can be connected simply with transceivers, capable of handling high power transmissions in TDD wireless communication base station systems, and can have increased receiver sensitivity and increased isolation between the transmitted and received signals. | 11-26-2009 |
20090295676 | Communication apparatus - A communication apparatus communicating other apparatuses includes: a switch for switching between a vertical polarized antenna and a horizontal polarized antenna; a communication device for transmitting and receiving the electric wave via one of the antennas, which is selected by the switch; a monitor for monitoring a relative distance between the apparatus and other apparatuses; and a controller for controlling the switch such that the switch selects the vertical polarized antenna when the relative distance is equal to or larger than a distance threshold, and the switch selects the horizontal polarized antenna when the relative distance is smaller than the distance threshold. The distance threshold is larger than a distance between the apparatus and a dip point. | 12-03-2009 |
20100001921 | SWITCHABLE PATCH ANTENNA FOR RFID SHELF READER SYSTEM - A switchable patch antenna includes a ground plane, a metal patch, at least two feed lines and a switch. The metal patch is positioned adjacent, but not in contact with, the ground plane. Each feed line is electrically connected to the metal patch. Each feed line is substantially orthogonal to at least one other feed line. The switch is electrically connected to the at least two feed lines. The switch is operable to sequentially select between the at least two feed lines for exciting the switchable patch antenna. | 01-07-2010 |
20100053020 | ANTENNA UNIT AND COMMUNICATION APPARATUS - An antenna unit and a communication apparatus are provided, which are operable with respect to wireless systems having three, or more frequencies by employing 2 sets of antenna elements, and which can realize such an antenna structure having a high freedom degree, while the antenna structure can be applied to frequency arrangements as to the plurality of wireless systems. An antenna unit includes a first antenna element | 03-04-2010 |
20100060544 | Frequency-Tunable Metamaterial Antenna Apparatus - Techniques and apparatus based on metamaterial structures to achieve tunable operations of an antenna at different antenna frequencies. | 03-11-2010 |
20100109968 | ANTENNA DEVICE AND PORTABLE TERMINAL DEVICE - An antenna device and a portable terminal device are provided that can be used for radio communication systems having different frequency bands by sharing a single antenna. An antenna device has a spiral antenna | 05-06-2010 |
20100117921 | ORGANIC CONNECTING APPARATUS OF RECEIVING SET FOR A CAR - Disclosed herein is an integrated connection apparatus for the receivers of a car. The integrated connection apparatus for the receivers of a car, in which two or more receivers are installed in the car, a number of antennas equal to the number of the receivers are installed, and the receivers and the antennas are electrically connected to each other, includes an antenna filtering unit connected to the plurality of antennas and configured to filter radio wave signals, received through the respective antennas, for respective frequency bands, an integrated cable connected to the filtering unit, and configured to provide a path for collecting signals obtained through filtering and transmitting the signals to a receiver side, and a receiver filtering unit connected to the integrated cable, and configured to classify the signals, transmitted through the integrated cable, into signals suitable for the respective receivers and transmit them. | 05-13-2010 |
20100117922 | ARRAY ANTENNA, RADIO COMMUNICATION APPARATUS, AND ARRAY ANTENNA CONTROL METHOD - An array antenna includes a group of antenna elements and a switching section. The group of antenna elements has a configuration in which a plurality of antenna elements is arranged. The switching section has a plurality of switch elements capable of individually switching the feeding points of the antenna elements included in the group of antenna elements. By switching of the switch elements, the group of antenna elements is converted into an antenna for MIMO communication to transmit and receive a plurality of signals in parallel, or into a directional array antenna to control the directivity towards the direction at which the signals arrive. | 05-13-2010 |
20100127951 | MULTI- ANTENNA SYSTEM FEED DEVICE AND WIRELESS LINK TERMINAL EQUIPPED WITH SUCH A DEVICE - A multi-antenna system feed device and a terminal including such a device is suggested. | 05-27-2010 |
20100149067 | ANTENNA - A parasitic antenna element ( | 06-17-2010 |
20100194663 | VARIABLE FREQUENCY PATCH ANTENNA - A patch antenna system comprises a patch antenna having a patch spatially separated from a ground plane; a plurality of pins interposed between the patch and the ground plane selectively connecting the patch to the ground plane; and a control module operably coupled to the plurality of pins and operable to set an operating frequency characteristic of the patch antenna by selectively connecting the patch to the ground plane with one or more of the plurality of pins. | 08-05-2010 |
20100245207 | MULTI-SECTOR RADIATING DEVICE WITH AN OMNI-DIRECTIONAL MODE - The present invention relates to a multi-sector radiating device intended to receive and/or transmit electromagnetic signals, comprising at least, arranged on a plane substrate: | 09-30-2010 |
20100277394 | Adaptive Adjustment of an Antenna Arrangement for Exploiting Polarization and/or Beamforming Separation - It is described an antenna arrangement for transmitting and/or for receiving electromagnetic radiation. The antenna arrangement includes two antenna elements, which are adapted for transmitting and/or for receiving electromagnetic radiation of a first polarization. The antenna arrangement further includes one antenna element, which is adapted for transmitting and/or for receiving electromagnetic radiation of a second polarization being different from the first polarization. Furthermore, there is provided one coupling unit, which is adapted to couple, based on an appropriate control signal, the antenna elements selectively with one terminal of the antenna arrangement in such a manner, that the polarization direction of the antenna arrangement can be adjusted to the first polarization or to a combination of the first and the second polarization. | 11-04-2010 |
20100277395 | ANTENNA DEVICE AND COMMUNICATION DEVICE - An antenna device and a communication device capable of changing over polarization characteristics of an antenna to improve transmission capacity in various kinds of polarization environments and used configuration by preventing reduction of the communication capacity for a reception signal degrading or varying depending on momentarily changing polarization conditions between a base station and a terminal. The antenna device ( | 11-04-2010 |
20100289717 | RECONFIGURABLE ANTENNA - A micro electromechanical (MEMS) antenna ( | 11-18-2010 |
20100302126 | Antenna Array - A circuit board for wireless communications includes communication circuitry for modulating and/or demodulating a radio frequency (RF) signal and an antenna apparatus for transmitting and receiving the RF signal, the antenna apparatus having selectable antenna elements located near one or more peripheries of the circuit board. A first antenna element produces a first directional radiation pattern; a second antenna element produces a second directional radiation pattern offset from the first radiation pattern. The antenna elements may include one or more reflectors configured to provide gain and broaden the frequency response of the antenna element. A switching network couples one or more of the selectable elements to the communication circuitry and provides impedance matching regardless of which or how many of the antenna elements are selected. Selecting different combinations of antenna elements results in a configurable radiation pattern; alternatively, selecting several elements may result in an omnidirectional radiation pattern. | 12-02-2010 |
20100315312 | SELF-INSTALLABLE SWITCHABLE ANTENNA - A system, method, and apparatus for selecting a set of antennas, for use during operation of a radio system, from a plurality of antennas. The system, method and apparatus may include selecting one antenna that is part of an array of antennas. Then measuring characteristics of radio signals received at the antenna. The selection and measuring of characteristic is repeated for a desired number of antennas in the array. Then, the measurements are combined, and the combinations of antennas are ranked based upon the combined measurement. From the ranking combinations of antennas are selected for use during operation of a radio system. | 12-16-2010 |
20110032171 | METHODS AND SYSTEMS OF CHANGING ANTENNA POLARIZATION - A switch assembly selectively couples an antenna communication circuit to a first feed point of a first antenna, and selectively couples the antenna communication circuit to a second feed point of a second antenna. Each feed point is selected based on polarization of an electromagnetic wave to be radiated from or received by the corresponding antenna. | 02-10-2011 |
20110037679 | Electrically Small Antenna with Wideband Switchable Frequency Capability - An electrically small antenna includes a first plurality of helical arms extending in one direction from a central portion of the antenna and a second plurality of helical arms extending from the central portion in a direction opposite from the direction of the first plurality of helical arms. A plurality of switches are coupled to control signal transmission and reception on the helical arms, each of the plurality of switches is coupled between a corresponding one of the first plurality of helical arms and the second plurality of helical arms. | 02-17-2011 |
20110043432 | MICROWAVE ANTENNA FOR WIRELESS NETWORKING OF DEVICES IN AUTOMATION TECHNOLOGY - A microwave antenna for wireless interconnection of automation devices has a first printed circuit board, on which a first conductor loop is arranged as a printed conductor track. A second printed circuit board having a second conductor loop in the form of a printed conductor track is arranged transversely with respect to the first printed circuit board. The second printed circuit board is attached to the first printed circuit board. The conductor loops are connected to a common feed connection. A bypass line connects one end of each the first and the second conductor loops. | 02-24-2011 |
20110057857 | ANTENNA DEVICE AND PORTABLE RADIO APPARATUS - A small antenna system which is incorporated in a portable radio apparatus and can ensure high antenna performance in a wide frequency band without impairing the design property or the operability and a portable radio apparatus are provided. An antenna device includes an antenna A | 03-10-2011 |
20110102293 | Antenna Assembly - An antenna module that includes two directional antennae arranged in a back-to-back manner, and a converter. The converter realizes conversion between an omnidirectional antenna mode and a directional antenna mode by switching on two directional antennae simultaneously or by switching on one of the directional antennas. Alternatively, the antenna module includes a horizontal polarization antenna, a vertical polarization antenna and a converter, where the converter provides the conversion between the horizontal polarization antenna mode and the vertical polarization antenna mode by switching on the horizontal polarization antenna or the vertical polarization antenna. | 05-05-2011 |
20110134014 | ANTENNA DEVICE AND WIRELESS COMMUNICATION TERMINAL - At least three resonance frequencies are obtained by two antenna elements. The antenna device includes antenna elements ( | 06-09-2011 |
20110156983 | Switching element, antenna switch circuit and radio frequency module using the same - A switching element is provided that realizes an stabilize a potential between the gates of the multi-gates without an increase in the insertion loss, and an antenna switch circuit and a radio frequency module each using the switch element. The switching element includes two ohmic electrodes | 06-30-2011 |
20110175791 | MULTI-BEAM, POLARIZATION DIVERSITY NARROW-BAND COGNITIVE ANTENNA - A multi-beam, polarization diversity, narrow-band cognitive antenna system is disclosed. The antenna system includes a plurality of antenna elements, switching elements, and transmission feed lines disposed on a PCB substrate, inside or on the enclosure of a consumer wireless device, on the airframe of an air vehicle, or on the surface of a ground vehicle. The plurality of switching elements are arranged with the antenna elements and transmission feed lines to, when selectively closed, electrically couple selected ones of the antenna elements and transmission feed lines to one another to generate an antenna configuration selected from a plurality of antenna configurations. A non-volatile memory is configured to store data representing at least some of the plurality of antenna configurations. A control arrangement operatively coupled to the plurality of switching elements and configured to close selected ones of the switching elements as a function of the data stored in said memory. Means are provided to selectively update the data on a function of previously selected antenna configurations. | 07-21-2011 |
20110215984 | COAXIAL HELICAL ANTENNA - A coaxial helical antenna for transmitting or receiving information through electromagnetic waves includes a first helical antenna comprising a first helix comprising a first diameter and a center cavity; a second helical antenna comprising a second helix comprising a second diameter, wherein the second diameter is smaller than the first diameter, and wherein the second helical antenna is seated within the center cavity of the first helical antenna; a shaped ground plate coupled to the first helical antenna and the second helical antenna; and two microstrip impedance transformers coupled to the first helical antenna, the second helical antenna, and the shaped ground plate. | 09-08-2011 |
20110254754 | MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SELECTIVE LOAD SWITCHING FOR ANTENNAS AND RELATED METHODS - A mobile wireless communications device may include a plurality of antennas, a plurality of wireless transceivers, and signal processing circuitry. The device may further include a controller for selectively switching the signal processing circuitry to a desired one of the wireless transceivers, and for selectively switching a desired one of the antennas to the desired one of the wireless transceivers. Moreover, the controller may also be for selectively connecting and disconnecting the at least one other one of the antennas to an unused one of the wireless transceivers. | 10-20-2011 |
20110273357 | PORTABLE TERMINAL - Provided is a portable terminal wherein reduction of an antenna gain can be suitably suppressed. The portable terminal is provided with a circuit section ( | 11-10-2011 |
20110273358 | PORTABLE TERMINAL - Provided is a portable terminal that can suppress reduction of antenna sensitivity. A portable telephone ( | 11-10-2011 |
20120007789 | ANTENNA ARRANGEMENTS - The present invention relates to an antenna arrangement ( | 01-12-2012 |
20120081262 | SWITCH CIRCUIT, SEMICONDUCTOR DEVICE, AND PORTABLE WIRELESS DEVICE - A switch circuit with a unit capable of improving a margin voltage without using a negative bias generation circuit is provided. A switch comprising an N-type MOSFET is used for a switch passing a signal to an antenna and a switch comprising a P-type MOSFET is used for a shunt switch grounding a signal. A common control signal is input to the gate terminal of the MOSFET constituting each switch. The inverted signal of this control signal is coupled to a ground terminal of the switch, and thus the potential of the gate terminal of each MOSFET can be set to the ground voltage. | 04-05-2012 |
20120098730 | COVERAGE ANTENNA APPARATUS WITH SELECTABLE HORIZONTAL AND VERTICAL POLARIZATION ELEMENTS - An antenna apparatus comprises selectable antenna elements including a plurality of dipoles and/or a plurality of slot antennas (“slot”). Each dipole and/or each slot provides gain with respect to isotropic. The dipoles may generate vertically polarized radiation and the slots may generate horizontally polarized radiation. Each antenna element may have one or more loading structures configured to decrease the footprint (i.e., the physical dimension) of the antenna element and minimize the size of the antenna apparatus. | 04-26-2012 |
20120154247 | MULTIBAND ANTENNA DEVICE AND PORTABLE RADIO COMMUNICATION DEVICE COMPRISING SUCH AN ANTENNA DEVICE - An antenna device for a portable radio communication device comprises a first electrically conductive radiating element including a basic resonance defining section having a first end, a length varying section connected between a feed point of the radiating element and the first end of the basic resonance defining section. The length varying section includes a set of parallel conductive paths and a first switching element selectively supplying radio signals between the feed point and the basic resonance defining section via one of the paths in the set. Each path influences the resonance of the radiating element in a separate way and at least one path includes a reactive element for adjusting the resonance of the first radiating element. | 06-21-2012 |
20120169567 | ANTENNA HAVING LINEAR ARRAY ANTENNA UNIT - An antenna may include a linear array antenna unit, a first switch, and a second switch. The linear array antenna unit may be configured to include a plurality of cable elements linearly arranged and coupled to each other. The first switch may include one end coupled to a ground and another end coupled to at least one of the plurality of cable elements of the linear array antenna unit. The second switch may include one end coupled to a power feed point and another end coupled to at least one of the plurality of cable elements. The plurality of cable elements of the linear array antenna unit may form one of a first antenna structure and a second antenna structure according to the switching operations of the first and second switches. | 07-05-2012 |
20120194406 | MULTI-BAND ELECTRONICALLY SCANNED ARRAY ANTENNA - A multi-band electronically scanned array antenna including a first sub-assembly having electronic circuits for a first frequency band; a second sub-assembly mechanically coupled to the first sub-assembly and having electronic circuits for a second frequency band; and an aperture adjacent to the first sub-assembly, the aperture being shared by the first sub-assembly and the second sub-assembly. The array antenna may further include a band switching circuit, or a combining circuit for coupling the first sub-assembly or the second sub-assembly to the aperture. The array antenna may also include a third sub-assembly including electronic circuits for a third frequency band. In this way, the aperture is shared by the first sub-assembly, the second sub-assembly, and the third sub-assembly to provide a smaller and lighter array antenna. | 08-02-2012 |
20120200473 | HARMONIC REJECTED ANTENNA SWITCH - The exemplary embodiments include a radio frequency antenna switch configured to reject harmonic frequencies. In addition, the harmonic-rejected radio frequencies of the radio frequency antenna switch may be tuned by use of a capacitor array. The capacitor array may be configured with fuse elements or by control logic. | 08-09-2012 |
20120212392 | System and method for passive protection of an antenna feed network - A system and method for providing overvoltage and overcurrent protection. The present teachings provide a method for protecting a component including the steps of: 1) connecting a first terminal of a normally open micro-electro-mechanical systems (MEMS) switch to a source of an input signal with respect to the component; 2) connecting a second terminal of the switch to an input to the component; and 3) connecting a third terminal of the switch to a source of control potential to activate the switch on the application of power thereto. In a most general embodiment, the invention provides an arrangement for protecting a component comprising a MEMS switch having a first terminal coupled to a source of an input signal; a second terminal coupled to said component; and a third terminal adapted to activate the switch on the application of control power thereto. In the best mode, the switch is normally open, the first terminal is a drain terminal, and the second terminal is coupled to a source of ground potential. In an illustrative application, the invention is used in an antenna having an array of antenna elements and a MEMS switch coupled to at least one of the elements to provide over-voltage and/or over-current protection. In the best mode, a separate MEMS switch is coupled to each element in the array in a normally open configuration via the drain terminal thereof | 08-23-2012 |
20120274538 | MULTIBAND ANTENNA AND WIRELESS COMMUNICATION DEVICE EMPLOYING THE SAME - A multiband antenna in a wireless communication device includes a main antenna, a first parasitic portion, a second parasitic portion, a first switch, and a second switch, the first switch is used to control functioning of the first parasitic portion. The second switch is used to control functioning of the second parasitic portion. Therefore, the main antenna can resonate alone or in combination with the functioning first parasitic portion and/or the functioning second parasitic portion, the multiband antenna has different operating frequency bands and different operating SAR. | 11-01-2012 |
20120287014 | HANDHELD DEVICE AND PLANAR ANTENNA THEREOF - A handheld device and a planar antenna thereof are provided. The planar antenna comprises a radiator, a screening element and a switch. The screening element is configured to make the planar antenna operating in a first high-frequency (HF) current path and a first low-frequency (LF) current path, and the switch is configured to make the planar antenna operating in a second HF current path and a second LF current path. The planar antenna operates at a first HF central frequency corresponding to the first HF current path and a first LF central frequency corresponding to the first LF current path when the switch is turned off, and operates at a second HF central frequency corresponding to the second HF current path and a second LF central frequency corresponding to the second LF current path when the switch is turned on. | 11-15-2012 |
20120326942 | Sectorized Antenna - Provided is a sectorized antenna. For example, there is a sectorized antenna including a plurality of antenna elements situated radially around a central axis, where each of the plurality of antenna elements corresponds to at least one of another plurality of sectors of the antenna. A first switch of the sectorized antenna is configured to selectively couple a first transceiver circuit to each antenna element in a first group of the plurality of antenna elements, where the selective coupling provides a configurable directionality for the antenna. | 12-27-2012 |
20130002516 | RECEIVING APPARATUS - A switching diode | 01-03-2013 |
20130038505 | SEMICONDUCTOR DEVICE AND RADIO COMMUNICATION DEVICE - To provide a fast charge means for a capacitor in a negative bias generation circuit. A capacitor is present in a down converter in a negative bias generation circuit. In order to perform fast charge, the capacitance of the capacitor is reduced and a necessary amount of charge is minimized. On the other hand, an external capacitance provided separately from the capacitor in the down converter is coupled directly to a power supply voltage and charged. After the capacitor in the down converter is charged, the external capacitance and the capacitor in the down converter are coupled in parallel. Due to this, it is made possible to aim at both the increase in charge speed and the improvement of resistance to ripple noise. | 02-14-2013 |
20130044040 | INFORMATION PROCESSING APPARATUS AND ANTENNA EXTENSION SYSTEM - An information processing apparatus, includes: a first connector that attaches a portable module incorporating an antenna; and a first antenna that transmits and receives a signal to/from the antenna; wherein when the portable module is attached to the first connector, the first antenna is fixed at a position on a substrate which is opposed to the antenna, and the first antenna is connected to a second antenna having a gain larger than a gain of the first antenna. | 02-21-2013 |
20130050052 | MIMO ANTENNA AND COMMUNICATION DEVICE USING THE SAME - A multiple-input multiple-output (MIMO) antenna and a communication device using the same is provided. The MIMO antenna includes a plurality of antenna elements in which a feeding unit is formed at one end, and another end is connected to a ground, and a connection unit which connects the antenna elements. | 02-28-2013 |
20130099996 | HANDHELD DEVICE AND PLANAR ANTENNA THEREOF - A handheld device and a planar antenna thereof are provided. The planar antenna comprises a radiator with an open terminal, a short terminal, a first feeding terminal and a second feeding terminal. The short terminal is coupled to a ground terminal. The first feeding terminal is formed between the open terminal and the short terminal, and coupled to a radio frequency (RF) signal terminal. The second feeding terminal is formed between the open terminal and the first feeding terminal, and coupled to the first feeding terminal by a transmission line and a switch element. The radiator resonates at the first central frequency when the switch element is turned off, and resonates at the second central frequency when the switch element is turned on. | 04-25-2013 |
20130120218 | Multi-Feed Antenna - A multi-feed antenna is disclosed. The multi-feed antenna includes a first feed terminal, a second feed terminal, a first ground terminal, a second ground terminal, a radiator and a control circuit. The radiator is coupled to the first feed terminal, the second feed terminal, the first ground terminal and the second ground terminal. The control circuit is coupled to the first feed terminal and the second feed terminal and used for switching a radio frequency (RF) signal between the first feed terminal to the first ground terminal and the second feed terminal to the second ground terminal. | 05-16-2013 |
20130127685 | ANTENNA DEVICE - Provided is an antenna device ( | 05-23-2013 |
20130169507 | WIRELESS COMMUNICATION DEVICE WITH SENSOR-BASED ANTENNA SELECTION - An exemplary wireless communication device includes a housing, a first antenna, a second antenna, a switch, and a radio frequency (RF) circuit. The housing includes a first holding portion corresponding to the second holding portion and a second holding portion corresponding to the first holding portion. The RF circuit is selectively connectable to the first antenna or the second antenna via the switch. The sensor is electrically connected to the switch. The sensor senses a state of the housing, wherein the state of the housing is one of position of the housing and proximity of a user's hand to one of the first antenna and the second antenna, and the sensor controls the switch to select the first antenna or the second antenna to connect to the RF circuit to transmit and receive signals wirelessly according to the sensed state of the housing. | 07-04-2013 |
20130176189 | MOBILE TERMINAL - A mobile terminal that includes a first antenna element disposed in proximity to a first side of the mobile terminal, a second antenna element disposed in proximity to a second side of the mobile terminal, and a third antenna element disposed in proximity to a third side of the mobile terminal. The mobile terminal further including a switching mechanism that switches between a first connection mode in which the first and second antenna elements are feed elements and the third antenna element is a parasitic element, and a second connection mode in which the first and third antenna elements are feed elements, and a control unit that controls the switching mechanism to switch between the first connection mode and the second connection mode in accordance with a predetermined condition. | 07-11-2013 |
20130194158 | DEVICES AND METHODS RELATED TO ELECTROSTATIC DISCHARGE-PROTECTED CMOS SWITCHES - Disclosed are devices and methods related to a CMOS switch for radio-frequency (RF) applications. In some embodiments, the switch can be configured to include a resistive body-floating circuit to provide improved power handling capability. The switch can further include an electrostatic discharge (ESD) protection circuit disposed relative to the switch to provide ESD protection for the switch. Such a switch can be implemented for different switching applications in wireless devices such as cell phones, including band-selection switching and transmit/receive switching. | 08-01-2013 |
20130207875 | EXPANSION ASSEMBLY FOR MIMO SYSTEM - The disclosure provides an expansion assembly configured to increase a transmitting distance of a MIMO system, the expansion assembly comprises N first RF front end units, N second RF front end units, a first power divider and combiner, and a second power divider and combiner. The first power divider and combiner connects with each of the first RF front end units, for delivering a first signal polarized in a first direction to the each of the first RF front end units. The second power divider and combiner connects with each of the second RF front end units, for delivering a first signal polarized in a first direction to the each of the second RF front end units. Accordingly, the first and second signal polarized in a second directions are capable of being transmitted in different directions, so as to implement the omni-directional transmission and increase the transmission distance. | 08-15-2013 |
20130222206 | MULTIBAND PORTABLE TERMINAL AND METHOD FOR CONTROLLING THEREOF - A portable terminal includes a first antenna unit including a low-frequency band antenna to service a low-frequency band; a second antenna unit including a high-frequency band antenna to service a high-frequency band; a first sub-antenna to support the low-frequency band antenna during communication; and a second sub-antenna to support the high-frequency band antenna during communication. A portable terminal includes a first antenna unit including a low-frequency band antenna to service a low-frequency band; a second antenna unit including a high-frequency band antenna to service a high-frequency band, in which the first antenna unit is disposed at a first portion of the portable terminal and the second antenna unit is disposed at a second portion of the portable terminal. | 08-29-2013 |
20130241797 | SWITCHING MULTI-MODE ANTENNA - Methods and apparatus of a switching multi-mode antenna of a user device are described. A switching multi-mode antenna is coupled to receive an RF input from one of at least two radio frequency (RF) feeds via a switch. The switching multi-mode antenna includes multiple antenna structures to communicate information in multiple frequency bands. A first antenna structure is configured to transmit first information in one of the frequency bands and a second antenna structure is configured to receive second information in the same one of the frequency bands. | 09-19-2013 |
20130241798 | BUILT-IN ANTENNA FOR ELECTRONIC DEVICE - A built-in antenna for an electronic device is provided. The built-in antenna includes a substrate, a 1st antenna radiator with at least two radiating portions, a 2nd antenna radiator, and a switching means. The substrate has a conductive area and a non-conductive area. The 2nd antenna radiator is arranged within the non-conductive area of the substrate and fed by a Radio Frequency (RF) end of the substrate. The 2nd antenna radiator is configured to operate at a band different from at least one operating band of the 1st antenna radiator, and is fed by the RF end in a position adjacent the 1st antenna radiator. The switching means switches to selectively feed the 1st antenna radiator and the 2nd antenna radiator. | 09-19-2013 |
20130249769 | ANTENNA DEVICE - There is provided an antenna device including: a finite ground plane; a feeding point; feed antenna elements arranged in a radial fashion around the feeding point at a height from the finite ground plane; a selector switch to connect a first end of a feed antenna element selected from the feed antenna elements to the feeding point; and parasitic elements arranged correspondingly to the feed antenna elements, in which a first end thereof is connected to the finite ground plane and a portion including a second end thereof is capacitively coupled with the feed antenna element corresponding thereto, wherein a first length of the parasitic element is approximately a quarter of a wavelength of a radio frequency to be used, and a length from the second end of the feed antenna element to the feeding point is shorter than the first length of the parasitic element. | 09-26-2013 |
20130249770 | DEVICE FOR RECEIVING OR EMITTING/RECEIVING MIMO SIGNALS - The invention relates to a device for receiving signals in a MIMO system comprising:
| 09-26-2013 |
20130257679 | COMMUNICATION DEVICE AND RECONFIGURABLE ANTENNA ELEMENT THEREIN - A communication device includes a ground element, an antenna element, and a reconfigurable circuit element group. The antenna element includes a first radiating portion and a second radiating portion. One end of the first radiating portion is a feeding end of the antenna element, and the other end is an open end. One end of the second radiating portion is coupled to the ground element, and the other end is an open end. The second radiating portion is longer than the first radiating portion. The second radiating portion surrounds the open end of the first radiating portion, and includes a first portion and a second portion. The reconfigurable circuit element group is coupled between the first portion and the second portion of the second radiating portion, and includes at least two branches. The reconfigurable circuit selectively opens and closes the branches such that the antenna element operates in different bands. | 10-03-2013 |
20130257680 | ANTENNA ASSEMBLY FOR A WIRELESS COMMUNICATIONS DEVICE - An antenna assembly for a wireless communications device and/or system, the assembly comprising a first antenna having a first direction of maximum radiated power; and a second antenna having a second direction of maximum radiated power, wherein the first and second antenna are arranged such that the first and second directions are substantially mutually orthogonal. Also, provided is an antenna assembly having a third or more antenna having a third or further direction of maximum radiated power, wherein the third or more antenna is/are arranged such that the third or further directions is/are substantially orthogonal with the first and second directions. | 10-03-2013 |
20130285878 | ANTENNA SWITCHING CIRCUIT AND ELECTRONIC DEVICE AND ANTENNA SWITCHING METHOD THEREOF - An antenna switching circuit and an electronic device and an antenna switching method thereof are provided. The antenna switching circuit is disposed in the electronic device including an internal antenna and a RF module, and includes an external antenna connector and a controller. The external antenna connector has an independent ground terminal for receiving an independent ground signal, and the external antenna connector is electrically connected to an external antenna. The controller has a first RF terminal, a second RF terminal and a control terminal, the first RF terminal is electrically connected to the RF module, the second RF terminal is electrically connected to the internal antenna, and the control terminal detects the independent ground signal. When the controller detects no change in the independent ground signal, the controller electrically connects the RF module to the internal antenna; otherwise, the controller electrically connects the RF module to the external antenna. | 10-31-2013 |
20130307750 | SWITCHING CIRCUIT AND WIRELESS COMMUNICATION SYSTEM INCLUDING THE SAME - Disclosed herein are a switching circuit and a wireless communication system including the same. In the case in which a control signal applied to a control terminal of a main switch is a first control signal, a first gate resistor is connected to the control terminal, such that the first control signal is applied to the control terminal of the main switch through the first gate resistor, in the case in which the control signal applied to the control terminal of the main switch is a second control signal, a second gate resistor is connected to the control terminal, such that the second control signal is applied to the control terminal of the main switch through the first gate resistor, and the first gate resistor and the second gate resistor have different resistance values, such the switching circuit may pass a multi-band high frequency signal therethrough. | 11-21-2013 |
20130335293 | ANTENNA APPARATUS, ANTENNA DEVICE AND SIGNAL TRANSMITTING APPARATUS - Embodiments of the present invention provide an antenna apparatus. The antenna apparatus includes multiple antennas, a switching unit, a grounding layer, connecting lines and a dielectric substrate. The antennas are configured to transmit and receive electromagnetic waves. The connecting lines are configured to connect the switching unit and the antennas. The switching unit is configured to selectively feed signals to the antennas through the connecting lines. The grounding layer serves as a reference of zero potential, and by setting the shape or size of the grounding layer and the distance from the grounding layer to the antennas, the grounding layer is further configured to restrain a transmitting direction of the electromagnetic waves transmitted by the antennas. The dielectric substrate is configured to allow the grounding layer to be printed thereon, and the dielectric substrate is further configured to allow the antennas, the switching unit and the connecting lines. | 12-19-2013 |
20130342424 | DIRECTION CONTROL ANTENNA AND METHOD OF CONTROLLING THE SAME - In a direction control antenna, a plurality of impedance elements are connected between a ground body and a radiator, a plurality of switches are connected between each impedance element and the ground body, and on/off of a plurality of switches is controlled according to a control instruction from the outside. In this case, by the turned-on switch, a radiation direction and a radiation form are determined according to short circuit positions of the radiator that is short-circuited to the ground body and the number of short circuit positions. | 12-26-2013 |
20140015731 | CONTACT MEMS ARCHITECTURE FOR IMPROVED CYCLE COUNT AND HOT-SWITCHING AND ESD - The disclosure is directed to optimized switching circuitry utilizing MEMS (Microelectromechanical Systems) circuitry in series with solid state circuitry. Specifically, the MEMS circuitry includes a first MEMS circuit in parallel with (and separate from) a second MEMS circuit. A paired signal is defined as a transmit signal and a receive signal (in a single band) that are transmitted or received on separate paths or on separate nodes. The transmit signal is associated with the first MEMS circuit, and the receive signal is associated with the second MEMS circuit. The solid state circuitry switches between the first MEMS circuit and second MEMS circuit without requiring any switching in the first or second MEMS circuits. | 01-16-2014 |
20140043206 | MULTI-THROW ANTENNA SWITCH WITH OFF-STATE CAPACITANCE REDUCTION - A multi-throw antenna switch with off-state capacitance reduction is disclosed. In an exemplary embodiment, an apparatus is provided that includes a plurality of first stage switches connected to an antenna, and a plurality of second stage switches connected to the plurality of first stage switches, each first stage switch connected in series to one or more second stage switches to form a plurality of switchable signal paths connected to the antenna. | 02-13-2014 |
20140055317 | DUAL-FEEDPOINT ANTENNA SYSTEM AND METHOD FOR FEEDPOINT SWITCHOVER OF DUAL-FEEDPOINT ANTENNA SYSTEM - A system includes a first feedpoint and a second feedpoint symmetrically disposed on the left and right sides of an antenna on a small board. A first switch, a second switch, and a third switch are disposed on a mainboard. The first switch, the second switch, and the third switch are controlled through a control instruction so that the system is in a first connection state and a second connection state. Signal strength corresponding to the first connection state and signal strength corresponding to the second connection state are detected, and if the signal strength corresponding to the first connection state is greater than the signal strength corresponding to the second connection state, each switch is controlled through an instruction so that the system is in the first connection state, in which the first feedpoint is working. Otherwise, the second feedpoint is working. | 02-27-2014 |
20140062831 | SWITCHING CIRCUIT - The present invention relates to a switching circuit, which can adjust characteristics such as insertion loss, isolation, and reflection loss according to the need by including a plurality of input/output terminals; at least one antenna; a plurality of main switches for connecting or disconnecting between each of the plurality of input/output terminals and the antenna; and a plurality of shunt switches having one ends respectively connected to the plurality of input/output terminals, wherein a voltage of less than 0 is applied to the other end of at least one of the plurality of shunt switches. | 03-06-2014 |
20140071020 | Near Field Coupling Devices and Associated Systems and Methods - A near-field coupling device that may facilitate communications with a transponder is provided. The near-field coupling device may include a ground plane, a dielectric substrate, one or more conductive strips and a terminating load. The conductive strips together with the ground planes form coupling elements. The near-field coupling device further includes one or more switching elements for selectively connecting and disconnecting the coupling elements with a transceiver. The connected coupling elements define a total characteristic impedance. Using the switching element, the ratio between the total characteristic impedance of the connected coupling elements and the terminating load may be changed in order to adjust the distribution of an electromagnetic field along the coupling elements according to the type and position of the transponder to be processed. | 03-13-2014 |
20140104134 | PORTABLE ELECTRONIC DEVICE AND ANTENNA STRUCTURE THEREOF - An antenna structure is provided, including a first radiator, a second radiator, a second coupling portion and a switch Circuit. The first radiator includes a feed portion and a first radiator body. The second radiator includes a first coupling portion, a second radiator body and a ground portion. The first coupling portion is connected to a first end portion of the second radiator body. The ground portion is connected to the second radiator body. At least a portion of the first radiator body is located between the first coupling portion and the second coupling portion. When the antenna structure is in a first mode, the switch circuit forms an electric path between the second radiator and the second coupling portion, and when the antenna structure is in a second mode, the switch circuit removes the electric path between the second radiator and the second coupling portion. | 04-17-2014 |
20140159989 | Adjustable Antenna Structures for Adjusting Antenna Performance in Electronic Devices - Adjustable antenna structures may be used to compensate for manufacturing variations in electronic device antennas. An electronic device antenna may have an antenna feed and conductive structures such as portions of a peripheral conductive electronic device housing member and other conductive antenna structures. The adjustable antenna structures may have a movable dielectric support. Multiple conductive paths may be formed on the dielectric support. The movable dielectric support may be installed within an electronic device housing so that a selected one of the multiple conductive paths is coupled into use to convey antenna signals. Coupling the selected path into use adjusts the position of an antenna feed terminal for the antenna feed and compensates for manufacturing variations in the conductive antenna structures that could potentially lead to undesired variations in antenna performance. | 06-12-2014 |
20140168030 | Reconfigurable Multiband Antenna - A mobile node (MN) comprising an antenna comprising a proximate end, a distal end, and a midpoint, a first feed coupled to the antenna between the proximate end and the midpoint, a second feed coupled to the antenna between the distal end and the midpoint, a first switch configured to toggle between coupling the first feed to a main feed and coupling the second feed to the main feed, and a controller configured to control the toggling of the first switch. | 06-19-2014 |
20140198012 | MOBILE DEVICE WITH TWO ANTENNAS AND ANTENNA SWITCH MODULES - A mobile device includes a system circuit board, a ground element, a communication module, a first antenna, a second antenna, a first ASM (Antenna Switch Module), and a second ASM. The first antenna is configured to receive or transmit a first signal in a first frequency band. The second antenna is configured to receive or transmit a second signal in a second frequency band. The second frequency band is different from the first frequency band. The first ASM is coupled between the first antenna and the communication module, and is configured to separate frequencies of the first signal. The second ASM is coupled between the second antenna and the communication module, and is configured to separate frequencies of the second signal. | 07-17-2014 |
20140266968 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. The antenna element includes a first portion and a second portion. The first portion has a first end and a second end. The first end is used as a first feeding point of the antenna element. The second portion has a third end and a fourth end. The third end is used as a second feeding point of the antenna element, and the fourth end is open. A first switch is coupled between the second end of the first portion and the third end of the second portion. The first switch is further coupled through the first portion and a first reactive circuit to a communication module. A second switch is coupled to the third end of the second portion. The second switch is further coupled through a second reactive circuit to the communication module. | 09-18-2014 |
20140320376 | PATCH ANTENNA AND METHOD FOR IMPEDANCE, FREQUENCY AND PATTERN TUNING - A patch antenna system comprises a patch antenna having a patch spatially separated from a ground plane, a plurality of shorting pins interposed between the patch and the ground plane to selectively interconnect one or more predetermined fixed locations of the patch to the ground plane. A control module is operably coupled to a discrete RF switch associated with each shorting pin to set the operating frequency characteristic of the patch antenna by selectively connecting the patch to the ground plane through one or more of the plurality of shorting pins. | 10-30-2014 |
20140354510 | Antenna system providing simultaneously identical main beam radiation characteristics for independent polarizations - Techniques of designing an antenna array or antenna system are described. The antenna system includes a plurality of antenna units structured in a way to form a desired antenna pattern. According to one aspect of the present invention, each of the antenna units includes two antennas orthogonally disposed. These antenna units are arranged in a pre-defined geometric pattern to create two substantially similar main beam radiation characteristics for independent polarizations. | 12-04-2014 |
20140354511 | CONNECTOR FOR A SWITCH MODULE - A connector is provided. The connector includes a first cavity, including a housing conductor having a receiving space formed at an inner side thereof, and connected to a ground; and a signal conductor disposed in the receiving space; a second cavity fixed to a side of the first cavity; and a flexible conductor having a connecting end, a propping end and an arc structure, wherein the connecting end is electrically connected to a control circuit, the propping end props the housing conductor, the arc structure is disposed in the second cavity and has a specific shape and a flexibility, and when the signal conductor is connected to a joint of a first antenna, the specific shape is deformed to cause the propping end to be disconnected from the housing conductor, thereby causing the control circuit to enable the first antenna. | 12-04-2014 |
20150009090 | ANTENNA DEVICE AND ELECTRONIC DEVICE HAVING THE ANTENNA DEVICE - An electronic device includes is provided. The electronic device includes an antenna radiator configured to operate in at least one frequency band, a ground stub disposed at a coupling location in proximity to the antenna radiator, and a switching device configured to selectively ground the ground stub and a ground of a main board. Thus, the present disclosure is easily applicable without design constraints in terms of space use when the main board and the antenna radiator are separated, and simplifies the assembly and reduces the cost without a separate sub-board. | 01-08-2015 |
20150054711 | System and Method for a Mobile Antenna with Adjustable Resonant Frequencies and Radiation Pattern - Embodiments are provided for an efficient antenna design and operation method to adjust or add frequency bands at mobile devices using the available limited antenna size. The embodiments include electrically coupling to the antenna elements at a mobile or radio device a tuning stub or element through a printed circuit board (PCB) or a metal chassis. The PCB is placed between the antenna elements and the tuning stub and is connected to the antenna elements. The tuning stub, e.g., at a corner of the PCB, is connected or disconnected via a switch from the PCB, and hence the antenna elements, to shift the radiation of the antenna at different frequencies and also provide an additional mode of radiation. The tuning stub can also be switched to vary the radiation pattern of the antenna. | 02-26-2015 |
20150070243 | COVERAGE ANTENNA APPARATUS WITH SELECTABLE HORIZONTAL AND VERTICAL POLARIZATION ELEMENTS - An antenna apparatus comprises selectable antenna elements including a plurality of dipoles and/or a plurality of slot antennas (“slot”). Each dipole and/or each slot provides gain with respect to isotropic. The dipoles may generate vertically polarized radiation and the slots may generate horizontally polarized radiation. Each antenna element may have one or more loading structures configured to decrease the footprint (i.e., the physical dimension) of the antenna element and minimize the size of the antenna apparatus. | 03-12-2015 |
20150084829 | MULTIPLE ANTENNA SYSTEM FOR A WIRELESS DEVICE - An apparatus includes a wireless device having a radio frequency (RF) circuit, an omni-directional antenna coupled to the RF circuit, a directional antenna coupled to the RF circuit, and a switch configured to couple at least one of the omni-directional antenna and the directional antenna to an output of the RF circuit. | 03-26-2015 |
20150123873 | Staggered Network Based Transmit/Receive Switch with Antenna Polarization Diversity - A system and apparatus is provided to reduce signal routing, area and signal loss in double-pole, double-throw (DPDT) switch implementations in wireless and millimeter-wave front ends. A staggered arrangement of receivers, transmitters and antenna ports connecting with DPDT switches reduce signal cross-over and allow for compact, low-loss multi-antenna configurations. | 05-07-2015 |
20150318622 | INTERLEAVED ELECTRONICALLY SCANNED ARRAYS - An array antenna including two interleaved array antennas, capable of being operated independently at a first frequency, or together, at a second frequency. Each of the two array antennas is composed of alternating elements of an antenna array, and the two arrays are interleaved. Each of the interleaved arrays may be operated independently, e.g., in the X band, or the arrays may be driven together, as a single array with more densely spaced elements, e.g., in the Ku band. | 11-05-2015 |
20150318625 | TERMINAL DEVICE AND ANTENNA SWITCHING METHOD - A terminal device includes a first memory that stores a position of each of antennas included in a main body of a terminal device for each of holding manners for the main body of the terminal device, a second memory, a processor coupled to the second memory, configured to detect a holding manner for the main body of the terminal device including the antennas, detect a shape indicating a shadow of an object pointing to a surface of the terminal device, identify a holding hand that holds the main body of the terminal device, based on the detected shape, and switch an antenna which overlaps with the holding hand to another antenna based on the identified holding hand and the position of each antenna stored in the first memory, the antenna corresponding to the detected holding manner. | 11-05-2015 |
20160064819 | ARRAY ANTENNA COMPRISING SECTIONS SERIALLY LINKABLE TO CENTRAL NODE IN DIFFERENT SPATIAL CONFIGURATIONS - Embodiments relate to an array antenna comprising a plurality of RF sections of equal length serially linkable to a central RF feed point in different spatial configurations. One arrangement has the RF sections in the form of a circular wheel/spoke, with switching elements (e.g., PIN diodes) located at junctions between RF sections. In operation, the switching elements create open/short circuits at select locations so that the antennas are connected serially in different orders. The center antenna is coupled to the input of the RF transceiver for sending and receiving signals. However, because the antenna array is switchable, different antennas in different physical locations around the center antenna may be configured as the terminal antenna. The path from different terminal antennas to the center antenna can be changed to optimize signal reception and throughput. These various spatial configurations offer improved communication throughput for signals (including reflected signals) incoming from different directions. | 03-03-2016 |
20160072187 | APPARATUS AND METHODS FOR WIRELESS COMMUNICATION - An apparatus comprising: a feed portion ( | 03-10-2016 |
20160079683 | BUILT-IN ANTENNA FOR ELECTRONIC DEVICE - A built-in antenna for an electronic device is provided. The built-in antenna includes a substrate, a 1st antenna radiator with at least two radiating portions, a 2nd antenna radiator, and a switching means. The substrate has a conductive area and a non-conductive area. The 2nd antenna radiator is arranged within the non-conductive area of the substrate and fed by a Radio Frequency (RF) end of the substrate. The 2nd antenna radiator is configured to operate at a band different from at least one operating band of the 1st antenna radiator, and is fed by the RF end in a position adjacent the 1st antenna radiator. The switching means switches to selectively feed the 1st antenna radiator and the 2nd antenna radiator. | 03-17-2016 |
20160085256 | Body Biasing for RF Switch Optimization - Switches comprising a number of transistors in series achieve improved performance through biasing the bodies of the transistors to lower the stack resistance in the ON mode and optionally to also lower the stack capacitance in the OFF mode. These switches find use in RF applications such as phase shifters, step attenuators, and in antenna switches, for example. In some embodiments, a bias network is used to alternatingly provide a positive bias voltage or a negative bias voltage to the bodies of the transistors. | 03-24-2016 |
20160093951 | PCB Beam-Forming Antenna - A two-dimensional antenna includes a ground plane, a primary radiator element, and at least one switchable radiator element. The ground plane comprises an electrically conductive material and is electrically coupled to an electrical ground. The primary radiator element is disposed in a coplanar relationship to said ground plane and is electrically coupled to a signal path of a transceiver. The at least one switchable radiator element is disposed in a coplanar relationship to the ground plane and the primary radiator element and is selectably electrically couplable to one of the signal path of the transceiver and the electrical ground. | 03-31-2016 |
20160099499 | Beamforming Method and Apparatus for Directional Signal Transmission - A beamforming method and a beamforming apparatus for directional signal transmission are provided, wherein a multiple antenna beamformer is configured to conduct a data transmission to a beamformee. | 04-07-2016 |
20160254590 | ANTENNA DEVICE AND ELECTRONIC DEVICE HAVING THE SAME | 09-01-2016 |
20170237153 | MIRRORED ANTENNA SYSTEM AND METHOD FOR BEAM STEERING FOR SAR MITIGATION | 08-17-2017 |
20190149218 | ANTENNA APPARATUS, CONTROL METHOD OF ANTENNA APPARATUS, VEHICLE HAVING THE ANTENNA APPARATUS | 05-16-2019 |