Entries |
Document | Title | Date |
20080211725 | Antenna having a plurality of resonant frequencies - An antenna having a plurality of resonant frequencies and including a ground plane having an edge; a feed point; a ground point; and
| 09-04-2008 |
20080224935 | ANTENNA - An antenna includes inductance elements that are magnetically coupled together, an LC series resonant circuit that includes one of the inductance elements and capacitance elements, and an LC series resonant circuit that includes another of the inductance elements and capacitance elements. The plurality of LC series resonant circuits are used to radiate radio waves and are used as inductances of a matching circuit that matches an impedance when a power supply side is viewed from power supply terminals and a radiation impedance of free space. | 09-18-2008 |
20080231528 | Cavity Antenna Excited with One or Several Dipoles - Cavity antenna excited with one or several dipoles in a single piece, which has on the element that excites the cavity a metallic plate connected to earth and which allows the input impedance of the antenna to be adjusted as well as the reflections in the radome, by means of the adjustment of the distance with respect to the back wall of the cavity, avoiding through the connection to earth that the antenna becomes charged electrostatically. The cavity assembly and the metallic plate allow a broader bandwidth, moreover a simpler control is achieved in the adjustment of the level of crosspolar polarization, as well as of the decoupling between dipoles by modification in the shape of the metallic plate. The grouping of the antennas in an array is possible in an immediate manner with no need to alter the size or shape of the cavities or of the dipoles which excite said cavities. | 09-25-2008 |
20080284667 | Modification of antenna radiation pattern using loading elements - Described is a technology by which an antenna circuit is modified by changing its loading element or elements to thereby provide a particular polar radiation/gain pattern. An antenna loading element is coupled to an antenna (e.g., a chip antenna of a mobile device, a printed copper monopole antenna, a meander line antenna, a Planar Inverted-F (type) Antenna (PIFA) or the like), and includes at least one segment that is not substantially parallel to the chip antenna. For example, in one implementation, the antenna element includes segments that are substantially orthogonal to a top-loaded chip antenna. The resulting antenna/antenna circuit modifies the polar radiation pattern, such that, for example, a mobile device can achieve more optimum gain when oriented for typical usage. One or more other segments may be bent to extend at another angle or angles to achieve a particular polar gain pattern. | 11-20-2008 |
20090153422 | ANTENNAS WITH PERIODIC SHUNT INDUCTORS - An antenna may be formed from conductive regions that define a gap that is bridged by shunt inductors. The inductors may have equal inductances and may be located equidistant from each other to form a scatter-type antenna structure. The inductors may also have unequal inductances and may be located along the length of the gap with unequal inductor-to-inductor spacings, thereby creating a decreasing shunt inductance at increasing distances from a feed for the antenna. This type of antenna structure functions as a horn-type antenna. One or more scatter-type antenna structures may be cascaded to form a multiband antenna. Antenna gaps may be formed in conductive device housings. | 06-18-2009 |
20090179807 | Test System for Adjusting a Wireless Communication Device by Impedance Loading Features - A test system for adjusting a wireless communication device by impedance loading features includes a power supply for generating a plurality of voltages, a test fixture coupled to the power supply for generating impedances corresponding to a plurality of impedance loading areas, a test equipment coupled to a test point of the wireless communication device via the test fixture for measuring a plurality of radio frequency characteristic sets of the wireless communication device, and a decision device coupled to the test equipment for determining an optimal impedance loading area of the wireless communication device according to the plurality of radio-frequency characteristic sets. | 07-16-2009 |
20090256764 | Antenna device having an adjustable frequency - An antenna device includes an antenna and a transmission element. The antenna includes a grounding element and a radiating element. The radiating element is connected to the grounding element and is provided with a plurality of spaced apart feeding portions. The transmission element is connected selectively to one of said feeding portions. When the transmission element is connected to one of the feeding portions, the radiating element operates in a distinct frequency. | 10-15-2009 |
20090295659 | RFID SYSTEM - A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device. | 12-03-2009 |
20100045553 | LOW-PROFILE ANTENNA STRUCTURE - A low-profile antenna structure can control its directivity with great flexibility. Excited elements | 02-25-2010 |
20100053010 | Antennas with Polarization Diversity - A horizontally polarized antenna array allows for the efficient distribution of RF energy into a communications environment through selectable antenna elements and redirectors that create a particular radiation pattern such as a substantially omnidirectional radiation pattern. In conjunction with a vertically polarized array, a particular high-gain wireless environment may be created such that one environment does not interfere with other nearby wireless environments and avoids interference created by those other environments. Lower gain patterns may also be created by using particular configurations of a horizontal and/or vertical antenna array. In a preferred embodiment, the antenna systems disclosed herein are utilized in a multiple-input, multiple-output (MIMO) wireless environment. | 03-04-2010 |
20100134367 | X, Ku, K BAND OMNI-DIRECTIONAL ANTENNA WITH DIELECTRIC LOADING | 06-03-2010 |
20100194653 | ANTENNAS WITH PERIODIC SHUNT INDUCTORS - An antenna may be formed from conductive regions that define a gap that is bridged by shunt inductors. The inductors may have equal inductances and may be located equidistant from each other to form a scatter-type antenna structure. The inductors may also have unequal inductances and may be located along the length of the gap with unequal inductor-to-inductor spacings, thereby creating a decreasing shunt inductance at increasing distances from a feed for the antenna. This type of antenna structure functions as a horn-type antenna. One or more scatter-type antenna structures may be cascaded to form a multiband antenna. Antenna gaps may be formed in conductive device housings. | 08-05-2010 |
20100207832 | ANTENNA ARRANGEMENT, PRINTED CIRCUIT BOARD, PORTABLE ELECTRONIC DEVICE & CONVERSION KIT - An antenna arrangement including a first antenna branch and a second antenna branch having a common feed point is provided. The first antenna branch includes a first conducting portion, a second conducting portion, and a first gap between the first and second conducting portions, and a plurality of inductor elements is connected in parallel across the first gap. | 08-19-2010 |
20100225551 | Multi-Band Antenna - A multi-band antenna includes a ground portion, a radiating element spaced from the ground portion, a tuning conductor extending from the radiating element and parallel to the ground portion to form a gap therebetween, a short-circuit conductor interconnecting the ground portion and the radiating element, and a feed point disposed at the radiating element and adjacent to the short-circuit conductor. The radiating element, the short-circuit conductor and the feed point function as a first inverted-F antenna obtaining a first high frequency band, and a second inverted-F antenna obtaining a low frequency band and a second high frequency band higher than the first high frequency band. The ground portion and the tuning conductor cause a capacitance effect to shift the second high frequency band to be close to the first high frequency band. It can cover various wireless communication frequency bands. | 09-09-2010 |
20100265148 | APPARATUS, METHOD AND COMPUTER PROGRAM FOR WIRELESS COMMUNICATION - An apparatus including a radiator having an electrical length; a first conductive element; an interconnector, connected to the radiator and to the first conductive element, having a first configuration and a second configuration, wherein the radiator has a first electrical length when the interconnector is in the first configuration and a second electrical length, different to the first electrical length, when the interconnector is in the second configuration. | 10-21-2010 |
20100277383 | Multiprotocol antenna for wireles systems - First, second and third feed ports interface to an antenna that has an impedance disposed between its ends which are defined by the first and second feed ports. The third feed port interfaces to the antenna at an intermediate point between the ends. In a first mode (balanced mode) the impedance enables signals to/from the first and second feed ports to resonate along the whole of the antenna, and in a second mode the impedance enables signals to/from the third feed port to resonate along a portion of the antenna, the portion terminating at the impedance. In embodiments, the first mode is for RFID signals and the second mode is for any one or more of Bluetooth/WLAN/GPS/FM signals. The first and second mode may operate simultaneously. Also detailed is a method for making an electronic device having such an antenna. | 11-04-2010 |
20100295743 | Antenna Structure With Reconfigurable Pattern And Manufacturing Method Thereof - The invention provides an antenna structure with reconfigurable pattern, which comprises a grounded plane, at least an active antenna electrically connected to an RF signal source, at least a current dragger electrically connected to the grounded plane, and a controller. The at least an active antenna and the at least a current dragger are distributed on or near the grounded plane. The controller disables or enables the at least a current dragger at an operating frequency band to switch the RF current applied to the grounded plane to flow into or against the at least a current dragger, thereby a plurality of radiation patterns may be configured. | 11-25-2010 |
20100302116 | MULTIPLE BAND COLLINEAR DIPOLE ANTENNA - A vertical dipole-style antenna operable over a wide range of predetermined frequencies that is made up of two collinear dipole antennas fed either in parallel through a single input connector or individually through two input connectors, contained within the same enclosure, where one dipole covers the VHF portion of the band from 30 MHz to 115 MHz and the other dipole covers the remainder of the band from 115 MHz to 512 MHz and together the two dipoles cover the very wide frequency band of 30 to 512 MHz through a single input connector. The VHF dipole is comprised of an existing vehicular dipole antenna design, while the UHF dipole antenna is comprised of radiating elements fed with a specially design coaxial transformer feedline with wide-band capacitive elements coupling the radiating elements to ground, providing variable loading to control the electrical length of the antenna. | 12-02-2010 |
20100309070 | MULTIBAND SINGLE-STRIP MONOPOLE ANTENNA - A multiband single-strip monopole antenna includes a dielectric substrate, a ground plane, and a radiating portion. The ground plane is disposed on one surface of the dielectric substrate without completely covering the surface of the dielectric substrate. The radiating portion is disposed on the surface of the dielectric substrate without overlapping the ground plane, and is internally embedded with an inductive element, via which a continuous path through the inductive element is formed between a start point and an open end of the radiating portion. Since the inductive element can compensate for an increased capacitive reactance caused by a reduced antenna length, good antenna matching can still be achieved even when the size of the antenna is reduced. | 12-09-2010 |
20110025570 | ANTENNA AND COMMUNICATION DEVICE INCLUDING THE SAME - An antenna includes a dielectric substrate and an antenna element. The antenna element includes a power feeding element and a reference potential element. The power feeding element includes a first conductive layer formed over the dielectric substrate, the first conductive layer extending in a first direction and having a first length along the first direction. The reference potential element includes a second conductive layer formed over the dielectric substrate, the second conductive layer extending in a second direction opposed to the first direction from a second position, the second point being apart by a first distance from a first position on an end of the first conductive layer, and a third conductive layer formed over the dielectric substrate, the third conductive element extending from the second point in the first direction apart by a second distance from the first conductive layer and having a third length along the first direction. | 02-03-2011 |
20110095952 | PLANAR MULTI-BAND ANTENNA - A planar multi-band antenna includes a substrate and a metal pattern. The metal pattern includes a first metal wire, a second metal wire, a third metal wire and a fourth metal wire. The second metal wire is disposed opposite to the first metal wire and has a grounding point. Two ends of the third metal wire are connected to the first metal wire and second metal wire, respectively, and the first metal wire is divided into a first radiation portion and a second radiation portion. The fourth metal wire is partially located between the second radiation portion and the second metal wire and forms multiple bends, and has a first impedance matching portion and a feed point, and part of the fourth metal wire coincides with the second radiation portion in a projection direction. By the activation of the feeding point and the grounding point associates with the impedance matching portion, the antenna has plural bands. | 04-28-2011 |
20110102283 | Integrated Multi-Band Antenna - An integrated multi-band antenna comprises a first conductor, a second conductor, at least one inductor member, an extension conductor, and a grounding plane. The first conductor and a first branch of the second conductor form a first coupling region. The inductor member is arranged near the first branch. The extension conductor is arranged near a second branch of the second conductor and extends therefrom to form a terminal. The terminal and first conductor form a second coupling region. The first and second coupling regions are arranged on opposite sides of the first conductor. The second branch connects to the grounding plane. The present invention adopts a design incorporating the capacitive coupling of the conductors and the choke of the inductor member, integrates the standard frequency bands of the low-frequency and high-frequency systems of the digital TV to achieve a miniaturized digital TV antenna spanning a wide range of frequency bands. | 05-05-2011 |
20110187617 | Transmission/Reception element - A transmission/reception element includes: a plurality of metal layers each disposed with space from another; and a switch for controlling electrical coupling between the metal layers. The switch includes a contact-point group including a plurality of contact-point pairs each disposed in parallel between each two of the metal layers, and a drive section mechanically driving the contact-point group for state change of each of the contact-point pairs between in-contact and no-contact. | 08-04-2011 |
20110193757 | GROUND RADIATOR USING CAPACITOR - A ground radiation antenna is disclosed. Herein, the ground radiation antenna provides a ground radiator inducing resonance by using the inductance of a ground. Since the ground radiator efficiently uses the inductance of the ground, the ground radiator may operate as a radiator of the ground radiation antenna by using a simple structure of combining a capacitive element with the ground. As described above, by providing an antenna radiator having a remarkably simple structure, the fabrication cost for the antenna may be decreased, and the size of the antenna may also be largely reduced. | 08-11-2011 |
20110210897 | ANTENNA DEVICE FOR A PORTABLE TERMINAL - An antenna device for a portable terminal includes: a ground pattern provided on one surface of a circuit board; a first antenna pattern configured to resonate at a first frequency band and provided on an opposite surface of the circuit board; and a second antenna pattern configured to resonate at a second frequency band different from the first frequency band and arranged along a periphery of the ground pattern. The second antenna pattern is a zeroth order mode resonator including a plurality of capacitors and a plurality of inductors. The antenna device easily secures the operation characteristics of different operation frequency bands and contributes to miniaturization of the portable terminal. Thus, a user can conveniently carry and use the portable terminal. | 09-01-2011 |
20110210898 | GROUND RADIATION ANTENNA - A ground radiation antenna is disclosed. Herein, the ground radiation antenna provides a radiator-forming circuit, which is formed to have a simple structure using a capacitive element, as well as a feeding circuit suitable for the provided radiator-forming circuit. Thus, the structure of the antenna becomes simpler and the size of the antenna becomes smaller. Accordingly, the fabrication process of the antenna is simplified, thereby largely reducing the fabrication cost. | 09-01-2011 |
20110210899 | MULTI-FREQUENCY ANTENNA - A multi-frequency antenna ( | 09-01-2011 |
20110221642 | ANTENNA DEVICE AND COMMUNICATION APPARATUS - There is provided an antenna device including a substrate, an earth section which is disposed on a portion of the substrate, a feed point which is disposed on the substrate, a loading section disposed on the substrate and constructed with a line-shaped conductor pattern which is formed in a longitudinal direction of an elementary body made of a dielectric material, an inductor section which connects one end of the conductor pattern to the earth section, and a feed point which feeds a current to a connection point of the one end of the conductor pattern and the inductor section, wherein a longitudinal direction of the loading section is arranged to be parallel to an edge side of the earth section. | 09-15-2011 |
20110273347 | APPARATUS AND ASSOCIATED METHOD FOR PROVIDING A FREQUENCY CONFIGURABLE ANTENNA EMPLOYING A PHOTONIC CRYSTAL - A frequency reconfigurable antenna may include at least two antenna segments and a photonic crystal positioned between the at least two antenna segments. The photonic crystal may selectably electrically connect or isolate the at least two antenna segments with respect to each other based on a conductive state of the photonic crystal. | 11-10-2011 |
20110273348 | METAMATERIAL ANTENNA DEVICE WITH MECHANICAL CONNECTION - A wireless device incorporating an antenna made of Composite Right Left Hand (CRLH) structures, having a connection element coupling a portion of the antenna to a ground electrode. In some embodiments a wireless device has one or more mechanical connection units made of electrically conductive materials to provide both mechanical engagement and electrical conduction for the antenna devices. | 11-10-2011 |
20120001815 | Multiband Antenna and Method for an Antenna to be Capable of Multiband Operation - A multiband antenna having a ground plane and a radiating portion is provided. The radiating portion includes a first metal portion, a second metal portion, an inductively-coupled portion and a third metal portion. The first metal portion has a first coupling metal portion and a signal feeding line electrically connected thereto. The second metal portion has a second coupling metal portion and a shorting metal portion electrically connected thereto with a shorting point connected to the ground plane. The first and second coupling metal portions are coupled and a capacitively-coupled portion is formed therebetween. The inductively-coupled portion is connected between the third and second metal portions. The first and second metal portions enable the antenna to generate a first operating band. The first, second and third metal portions enable the antenna to generate a second operating band, the frequencies of which are lower than those of the first operating band. | 01-05-2012 |
20120007786 | RESONATOR ANTENNA - A meta-material ( | 01-12-2012 |
20120019422 | Damage Resistant Antenna - The invention provides a damage resistant antenna using a super-elastic flexible metallic material to form antenna radiating structures with a high damage threshold. The invention accounts for the electro-magnetic properties of the super-elastic flexible metallic material in the design of the shape and dimensions needed to form antenna radiating structures with consistent performance after repeated deploy, stow, and transport cycling of the antenna. | 01-26-2012 |
20120026050 | Antenna Device - An antenna device includes: an antenna base plate having a shape of a flat plate; a capacity loading plate of a top capacity loaded type monopole antenna, the capacity loading plate arranged in parallel with the antenna base plate; and a planar antenna arranged between the antenna base plate and the capacity loading plate. A size of at least a part of the capacity loading plate in a direction of width of the capacity loading plate is less than about ΒΌ wavelength of receiving frequency of the planar antenna, and edges of the capacity loading plate in the direction of width of the capacity loading plate are folded back so that the capacity loading plate has a meander shape extending in a direction of length of the capacity loading plate. | 02-02-2012 |
20120032862 | ANTENNA ARRANGEMENT, DIELECTRIC SUBSTRATE, PCB & DEVICE - An antenna arrangement may include a ground plane, a feeding branch, a first branch and a second branch. The first branch may be longer than the second branch. The feeding branch may be capacitively coupled to the first branch. The feeding branch, the first branch, and the second branch include inductor loading and may be arranged in a single plane at a distance from the ground plane. | 02-09-2012 |
20120062434 | ANTENNA USING A REACTIVE ELEMENT - Disclosed is an antenna using a reactive element that is capable of individually controlling the respective resonance frequencies and resonance bandwidths. The antenna includes a radiator electrically coupled with a feeding point, a first reactive element electrically coupling a first point and a second point of the radiator, and a second reactive element electrically coupling a third point and a fourth point of the radiator. Here, the reactive elements are each coupled to the radiator in parallel, and because of the reactive elements, the antenna is made to have higher-order resonance frequencies that are not integer multiple in relation to a fundamental resonance frequency. | 03-15-2012 |
20120075153 | WIDEBAND AND MULTIBAND EXTERNAL ANTENNA FOR PORTABLE TRANSMITTERS - A communication device is presented that has a multiband antenna structure. A helical load extends from a monopole and reduces the resonance frequency of the monopole to the UHF band while leaving a GPS resonance of the monopole substantially unchanged. Helical proximate and distal portions are connected to the load such that the overall antenna structure has a VHF resonance. The helical portions have different characteristics and are configured to not substantially affect the UHF or GPS resonances. The helical portions have different pitch angles to permit minimization of the length of the combined helical portions while providing a desired operating VHF bandwidth. | 03-29-2012 |
20120086617 | ANTENNA - An antenna includes a metal member, an antenna, and a capacitor. The metal member includes a plurality of sidewalls connecting with each other. The antenna includes a fixing end and a free end, the fixing end is fixed to the metal member. The capacitor connects with the metal member and the free end of the antenna. | 04-12-2012 |
20120098721 | Mobile Communication Device and Antenna - A mobile communication device is provided. The mobile communication device includes a system circuit board with a surface, a ground plane having a monopole slot on the surface, a microstrip feedline, and a metal element, wherein the ground plane has a longer edge and a shorter edge. The monopole slot has a first operating band and a second operating band. The microstrip feedline is located on the system circuit board, wherein one end of the microstrip feedline passes over the monopole slot, and the other end of the microstrip feedline is connected to a signal source. The metal element is electrically connected to the shorter edge of the ground plane, and is substantially perpendicular to the ground plane. A distance between the open end of the monopole slot and the shorter edge of the ground plane where the metal element is connected is shorter than 0.05 wavelength of the lowest operating frequency of the first operating band. | 04-26-2012 |
20120105291 | SOLID ANTENNA WITH UPPER-LOWER STRUCTURE - A solid antenna configured above a substrate includes a short portion, a feeding portion and a radiating portion including four radiators connected one-by-one. A first radiator includes a first upper section on a first plane, a first lower section on a second plane, and a first connection section connecting the first upper section to the first lower section. The second radiator includes a second upper section on the first plane, and a second connection portion connecting the second upper section to the first lower section. The third radiator includes a third upper section and a fourth upper section on the first plane, a second lower section on the second plane, a third connection section connecting the third upper section to the second lower section, and a fourth connection section connecting the second lower section to the fourth upper section. The fourth radiator extends towards the substrate. | 05-03-2012 |
20120105292 | Communication Device and Antenna Thereof - A communication device is provided, including a ground element, a substrate and an antenna. The substrate is adjacent to the ground element. The antenna provides a first band and a second band, and the antenna is disposed on the substrate. The antenna includes a radiator, a feed conductor, a capacitor unit and a short-circuiting unit. An end of the feed conductor is connected to a signal source, and another end of the feed conductor is electrically connected to the radiator. The capacitor unit is disposed on the feed conductor. The short-circuiting unit includes a first short-circuiting path and a second short-circuiting path, wherein the first and a second short-circuiting paths electrically connect the radiator to the ground element, the first short-circuiting path has a first path length, the second short-circuiting path has a second path length, and the first and second path lengths are longer than 0.05 times that of a wavelength of a lowest frequency of the first band. | 05-03-2012 |
20120112974 | LOW PROFILE, BROAD BAND MONOPOLE ANTENNA WITH HEAT DISSIPATING FERRITE/POWDER IRON NETWORK AND METHOD FOR CONSTRUCTING THE SAME - An antenna operable over a predetermined range of frequency includes a transmission line, a transformer network connected to one end of the transmission line, and at least one ferrite/powder iron network connected to an opposite end of the transformer network. The ferrite/powder iron network changes the effective electrical length of the antenna such that as the frequency of operation changes, the current distribution above and below the network changes in corresponding manner. A second ferrite/powder iron network may be serially positioned with respect to the other network, wherein both function to reduce the current thereabove. Accordingly, as the frequency of operation increases, the electrical height of the antenna decreases. The network also encompasses a way to safely dissipate otherwise destructive heat created by the operation of the antenna system at high radio-frequency power. | 05-10-2012 |
20120127048 | ANTENNA MODULE - An antenna includes a first antenna portion, a second antenna portion, a third antenna portion, a feed portion, and a ground portion. The first antenna portion perpendicularly connects to the feed portion and the ground portion. The second antenna portion connects to the first antenna portion. The third antenna portion connects to the feed portion. The first antenna portion and the second antenna portion are both located on a plane perpendicular to the feed portion. The feed portion, the ground portion, and the third antenna portion are coplanar. | 05-24-2012 |
20120127049 | FREQUENCY STABILIZATION CIRCUIT, FREQUENCY STABILIZATION DEVICE, ANTENNA APPARATUS AND COMMUNICATION TERMINAL EQUIPMENT, AND IMPEDANCE CONVERSION ELEMENT - A frequency stabilization device includes a first radiating element, a second radiating element, a feeding circuit connected to the first and second radiating elements, and a frequency stabilization circuit disposed between the feeding circuit and the first radiating element. The frequency stabilization circuit includes a primary-side series circuit connected to the feeding circuit and a secondary-side series circuit coupled to the primary-side series circuit via an electric field or a magnetic field. A first inductance element and a second inductance element are connected in series to each other, and a third inductance element and a fourth inductance element are connected in series to each other. The first and third inductance elements are coupled to each other, and the second and fourth inductance elements are coupled to each other. | 05-24-2012 |
20120162038 | MULTIBAND ANTENNA - A multiband antenna includes a feed unit, a transceiving unit, and a resonance unit positioned adjacent to but separate from the feed unit and the transceiving unit. When feed signals are input to the feed unit, the feed signals are transmitted to the transceiving unit to form current paths of different lengths, and the resonance unit is driven to resonate and generates additional current paths of different lengths. In this way, the transceiving unit and the resonance unit are enabled to respectively receive and send wireless signals of different frequencies, and thus the multiband antenna is capable of receiving and sending wireless signals in more than two frequency bands. | 06-28-2012 |
20120169555 | MULTIBAND ANTENNA - A multiband antenna includes a feed unit, a first transceiving unit, a second transceiving unit, and a resonance unit. When feed signals are input from the feed unit, the feed signals are respectively transmitted to the first transceiving unit and the second transceiving unit to enable the first transceiving unit and the second transceiving unit to respectively receive and send wireless signals of different frequencies. In addition, the resonance unit is driven to resonate and serve as a coupled ground resonator that generates additional current paths of at least two different lengths. Such that the resonance unit is enabled to receive and send wireless signals of at least two additional frequencies, and the multiband antenna is further enabled to receive and send wireless signals in more than two frequency bands. | 07-05-2012 |
20120188135 | COMMUNICATION DEVICE AND ANTENNA STRUCTURE THEREIN - A communication device including an antenna structure is provided, wherein the antenna structure includes a ground element, an antenna element, and a circuit element group. The ground element has a notch at one of its edges, and a long edge of the notch is at least two times longer than a short edge of the notch. The antenna element includes a metal portion disposed in the notch. Two ends of the metal portion are extended away from each other and are positioned substantially at or around two opposite edges of the notch. One end of the metal portion is coupled to the ground element, and the other end of the metal portion is a feeding terminal of the antenna element. The circuit element group includes at least a capacitive element and an inductive element. | 07-26-2012 |
20120218158 | EARPHONE ANTENNA OF MOBILE TERMINAL - An earphone antenna of a mobile terminal having a switching function by taking radiation characteristics of an antenna into consideration when the earphone antenna is used for receiving Frequency Modulation (FM) radio broadcasting and Digital Multimedia Broadcasting (DMB) is provided. The earphone antenna includes a first connector cable including a first antenna line for receiving DMB, a second connector cable including a second antenna line connected to the first antenna line for receiving FM radio broadcasting, and a switch positioned between the first connector cable and the second connector cable for electrically connecting and separating the first antenna line to and from the second antenna line. The single earphone antenna supports an FM radio broadcasting antenna and a DMB antenna. | 08-30-2012 |
20120235871 | ANTENNA DEVICE AND RADIO FREQUENCY IC DEVICE - An antenna device is arranged to transmit or receive a radio frequency communication signal to or from an external device such as a reader/writer, and is arranged such that an antenna resonance circuit including an antenna coil and a capacitor is connected to an additional resonance circuit including an inductor and a capacitor. A radio frequency IC device preferably includes the antenna device and a radio frequency IC. The antenna device is constructed such that a change in characteristics thereof caused by a change in the distance between a radio frequency IC device and a reader/writer is minimized, and the radio frequency IC device performs communication with high reliability. | 09-20-2012 |
20120242552 | MULTI-BAND ANTENNA - A multi-band antenna includes two conductive wirings and unit circuits cascaded along the conductive wirings. Each unit circuit includes a communication unit, a first capacitor and a second inductor. The communication unit connects between the conductive wirings through a first inductor and a second capacitor connected in series with the first inductor. The first capacitor and the second inductor are inserted in at least one of the conductive wirings. The second inductor is connected in parallel with the first capacitor. Alternatively, the unit circuit includes a communication unit connecting between the conductive wirings through a first inductor, and a first capacitor inserted in at least one of the conductive wirings. The first inductor, the first capacitor, a third capacitor disposed between the conductive wirings, and a third inductor disposed on at least one of the conductive wirings satisfy a relationship expressed by the expression 2. | 09-27-2012 |
20120249386 | ANTENNA DEVICE, CIRCUIT BOARD AND MEMORY CARD - A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate. | 10-04-2012 |
20120256800 | MULTIBAND ANTENNA STRUCTURE AND METHODS - An antenna structure intended for small-sized mobile terminals. In one embodiment, the antenna structure comprises a main radiator for implementing the lowest operating band and other radiators for implementing at least one operating band in the high band. The structure also comprises a matching circuit, by which a plural (e.g., double) resonance is implemented for the main radiator in the range of the lowest operating band and the isolation is improved between the main radiator and another radiator. A reactive element is joined to the main radiator so that its electric size decreases in the high band and increases in the low band. The former strengthens the resonances in the high band, and thus results in rise in the efficiency in the high band. | 10-11-2012 |
20120319909 | ANTENNA DEVICES AND PORTABLE ELECTRONIC DEVICES COMPRISING SUCH ANTENNA DEVICES - An exemplary embodiment of an antenna device generally includes a radiator structure with at least one first radiator element. The antenna device also includes a first feeding connection coupling the radiator structure to a first radio circuit for operation in a first frequency band. The antenna device further includes a second feeding connection coupling the radiator structure to a second radio circuit for operation in a second frequency band. A set of capacitors is connected to the radiator structure. This set includes at least one capacitor where a first end of each capacitor in the set is connected to the radiator structure and a second end is provided at ground potential, at least for the first frequency band. The sum of the values of the capacitors in the set is below 15 picofarads. | 12-20-2012 |
20130027260 | ANTENNA FEEDING STRUCTURE AND ANTENNA - The disclosure provides an antenna feeding structure having a low frequency loop, an intermediate frequency loop, and a high frequency loop, and generates resonance between the inductance of the intermediate frequency loop itself and a capacitive element in the intermediate frequency loop, wherein the antenna feeding structure is configured to be able to adjust the resonance frequency using the area of the loop and the value of the capacitive element, thereby allowing the antenna to have a broadband characteristic, and further, making it possible to easily design an antenna having a desired band. | 01-31-2013 |
20130057440 | Single-Sided Multi-band Antenna - Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments. | 03-07-2013 |
20130057441 | Multi-Layered Multi-band Antenna with Parasitic Radiator - Embodiments provide multi-band, compound loop antennas (multi-band antennas). Embodiments of the multi-band antennas produce signals at two or more frequency bands, with the two or more frequency bands capable of being adjusted and tuned independently of each other. Embodiments of a multi-band antenna are comprised of at least one electric field radiator and at least one monopole formed out of the magnetic loop. At a particular frequency, the at least one electric field radiator in combination with various portions of the magnetic loop resonate and radiate an electric field at a first frequency band. At yet another particular frequency, the at least one monopole in combination with various portions of the magnetic loop resonate and radiate an electric field at a second frequency band. The shape of the magnetic loop can be tuned to increase the radiation efficiency at particular frequency bands and enable the multi-band operation of antenna embodiments. | 03-07-2013 |
20130088399 | ANTENNA HAVING A FEEDING STRUCTURE, AND A FEEDING METHOD - Provided is an antenna having broadband frequency characteristics due to the use of a power supply structural body having a closed loop consisting of a conductive circuit and an inductive element, such that the capacitance due to a capacitive element and the inductance due to the closed loop give rise to resonance, and the magnetic flux generated in the closed loop at the resonance frequency is coupled to a radiator. Also provided is an antenna having broadband characteristics in a plurality of bands. | 04-11-2013 |
20130093636 | Broad-Band, Multi-Band Antenna - A broad-band, multi-band antenna. The antenna includes a ground terminal and a feed terminal, an elongated inductor, a first inductive element electrically coupled between the ground terminal and a first extremity of the elongated inductor, a capacitive element in parallel connection with the first inductive element, and a second inductive element electrically coupled between a second extremity of the elongated inductor and the feed terminal. | 04-18-2013 |
20130093637 | ANTENNA DIELECTRIC CAP LOADING - Antenna miniaturization is a big engineering challenge because of the fundamental limitations that restrict antenna performance. In the present invention a new dielectric cap loading technique for improving small antenna element performance exploiting the space capacitance is introduced. The cap loading technique can be easily realized e.g. by 3D dielectric blocks, such as ceramic blocks. | 04-18-2013 |
20130120201 | ELECTRONIC APPARATUS FOR ISOLATING SIGNAL GENERATION DEVICE - An electronic apparatus is provided. The apparatus includes at least one signal generation device that generates a signal when power is supplied, a grounding plate in which a slot is formed, which grounds the signal generation device when the signal generation device is operated, and a blocking device interposed in the slot, which closes the slot, provides an output path of the signal, and blocks an inflow of the signal to the signal generation device when the signal generation device is operated. | 05-16-2013 |
20130135164 | SMALL ANTENNA APPARATUS OPERABLE IN MULTIPLE BANDS - In a radiator, a large loop is formed by radiation conductors, first and second capacitors, and first and second inductors, and a small loop is formed by portions of the radiation conductors close to each other, the second capacitor, and the second inductor. The radiator is configured such that its first portion, second portion, and third portion resonate at predetermined frequencies, respectively. The first portion extends along the large loop, and includes the first inductor, the first capacitor, and one of the second inductor and the second capacitor. The second portion includes a section extending from a feed point to a second position through one of the first inductor and the first capacitor, and includes the small loop. The third portion includes a section extending from the feed point to the second position through the first capacitor. | 05-30-2013 |
20130147673 | METAMATERIAL LOADED ANTENNA STRUCTURES - Techniques and devices based on antenna structures with a MTM loading element. | 06-13-2013 |
20130162489 | MULTIBAND ANTENNA - A multiband antenna includes at least two polygons. The at least two polygons are spaced by means of a non-straight gap shaped as a space-filling curve, in such a way that the whole gap length is increased yet keeping its size and the same overall antenna size allowing for an effective tuning of frequency bands of the anenna. | 06-27-2013 |
20130176184 | WIRELESS COMMUNICATION DEVICE - A wireless communication device includes a flexible base material film, a flexible antenna conductor that is provided in substantially the entire region of one main surface of the flexible base material film and that includes a first radiation element and a second radiation element facing each other through a slit, an inductor substrate that is connected to the first radiation element and the second radiation element so as to extend across the slit, the inductor substrate including an inductance element, and a wireless IC element that is connected in parallel to the inductance element and that is mounted in the inductor substrate. The wireless IC element is connected to the first radiation element and the second radiation element so as to extend across the slit. | 07-11-2013 |
20130207858 | ANTENNA-DEVICE SUBSTRATE AND ANTENNA DEVICE - Provided is an antenna-device substrate which is capable of flexibly adjusting multiple resonance frequencies, and also provided is an antenna device. The antenna-device substrate is provided with a substrate main body ( | 08-15-2013 |
20130234902 | SMALL ANTENNA APPARATUS OPERABLE IN MULTIPLE BANDS INCLUDING LOW-BAND FREQUENCY AND HIGH-BAND FREQUENCY AND INCREASING BANDWIDTH INCLUDING HIGH-BAND FREQUENCY - A radiator is provided with a looped radiation conductor, a capacitor, an inductor, a feed point on the radiation conductor, and a dielectric block provided in a portion where the radiation conductor and the ground conductor are close to each other. At a low-band resonance frequency, a current flows through a path extending along an inner perimeter of the loop of the radiation conductor and including the inductor and the capacitor. At a high-band resonance frequency, a current flows through a path including a section extending along an outer perimeter of the loop of the radiation conductor, including the capacitor but not including the inductor, and extending between the feed point and the inductor, and a parallel resonant circuit is formed from: a capacitance between the radiation conductor and the ground conductor between which the dielectric block is provided; and an inductance of the radiation conductor. | 09-12-2013 |
20130241784 | COMMUNICATION DEVICE AND TUNABLE ANTENNA ELEMENT THEREIN - A communication device includes a ground element, an antenna element, a circuit element group, and a communication module. The antenna element is a loop antenna. One end of the antenna element is a grounding end coupled to the ground element, and the other end of the antenna element is a feeding end close to the grounding end. The circuit element group includes at least two separate circuit element sub-groups. The communication module is coupled to the circuit element group. One of the circuit element sub-groups of the circuit element group is selectively coupled to the feeding end so as to make the antenna element operate in different communication bands. | 09-19-2013 |
20130249753 | SMALL ANTENNA APPARATUS OPERABLE IN MULTIPLE BANDS INCLUDING LOW-BAND FREQUENCY AND HIGH-BAND FREQUENCY WITH ULTRA WIDE BANDWIDTH - A radiator includes a looped radiation conductor, a capacitor, an inductor, and a feed point on a radiation conductor. In a portion where the radiation conductor and a ground conductor are close to each other, a distance between the radiation conductor and the ground conductor gradually increases as a distance from the feed point along the looped radiation conductor increases. When the radiator is excited at a low-band resonance frequency, a current flows along a first path extending along an inner perimeter of the looped radiation conductor and including the inductor and the capacitor. When the radiator is excited at a high-band resonance frequency, a second current flows through a second path including a section extending along an outer perimeter of the looped radiation conductor, and the section including the capacitor but not including the inductor, and the section extending between the feed point and the inductor. | 09-26-2013 |
20130257667 | Antenna Tuning - Disclosed are various embodiments for tuning an antenna. Multiple phase sets for a tuning circuit impedance are generated. Each phase set includes multiple phase values. A reflected voltage corresponding to each of the phase values is determined. For each phase set, one of the phase values is selected based on the corresponding reflected voltage. The phase values for each phase set that is subsequent to an initial phase set are generated. The phase values are based on the selected phase value for the previous the phase set. | 10-03-2013 |
20130328736 | ADAPTATION OF AN ANTENNA CIRCUIT FOR A NEAR-FIELD COMMUNICATION TERMINAL - A method for adapting an antenna circuit including at least one first capacitive element and an inductive element in series, and at least one second capacitive element having a first electrode connected between the first capacitive element and the inductive element, wherein data representative of the voltage of said first electrode are applied to the second electrode of the second capacitive element. | 12-12-2013 |
20130328737 | BROADBAND MONOPOLE ANTENNA WITH DUAL RADIATING STRUCTURES - A broadband monopole antenna with dual-radiating elements is provided. In one embodiment, an antenna comprises a ground plane; a first radiating structure having a symmetric configuration along a central axis, comprising a first feed point electrically connected to the base of said first radiating structure along said central axis and a first slot with a corresponding first open-ended strip along said central axis; and a second radiating structure conjoined with said first radiating structure having a symmetric configuration along said central axis, comprising a second feed point electrically connected to the base of said second radiating structure along said central axis and a second slot with a corresponding second open-ended strip along said central axis; and wherein the antenna resonates and operates at a plurality of resonant frequencies. | 12-12-2013 |
20140002320 | ANTENNA APPARATUS OPERABLE IN DUALBANDS WITH SMALL SIZE | 01-02-2014 |
20140015721 | ANTENNA APPARATUS - Provided is an antenna device which is capable of flexibly adjusting multiple resonance frequencies. The antenna device is provided with a substrate main body ( | 01-16-2014 |
20140015722 | ANTENNA APPARATUS AND FEEDING STRUCTURE THEREOF - Embodiments provide connecting various circuits to which capacitive elements are connected to obtain an optimal capacitive reactance value needed in a resonance. Embodiments provide a capacitance value of an optimal capacitive reactance needed in a resonance by connecting a plurality of capacitive elements to a conductive line connecting an emitter and a ground in series or connecting one or more capacitive elements in parallel/series. | 01-16-2014 |
20140035788 | GROUND RADIATION ANTENNA - A ground radiation antenna is disclosed. Herein, the ground radiation antenna provides a radiator-forming circuit, which is formed to have a simple structure using a capacitive element, as well as a feeding circuit suitable for the provided radiator-forming circuit. Thus, the structure of the antenna becomes simpler and the size of the antenna becomes smaller. Accordingly, the fabrication process of the antenna is simplified, thereby largely reducing the fabrication cost. | 02-06-2014 |
20140062820 | GROUND ANTENNA AND GROUND RADIATOR USING CAPACITOR - By providing a radiator configuration circuit and a feeding circuit each having a simple structure, a ground radiation antenna having a more simplified fabrication process as well as a remarkably reduced fabrication cost is provided herein. Additionally, a ground radiation antenna having an excellent radiation performance, even when one side of a mobile communication terminal is covered with a conductive substance, such as an LCD panel, is also provided herein. | 03-06-2014 |
20140062821 | DEVICE FOR RECEIVING AND/OR EMITTING A WAVE, A SYSTEM COMPRISING THE DEVICE, AND USE OF SUCH DEVICE | 03-06-2014 |
20140125536 | COMMUNICATION DEVICE AND WIDE-BAND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. The antenna element is disposed adjacent to the ground element. The antenna element includes a first radiation element and a second radiation element. The first radiation element includes a first portion and a second portion. The first portion is coupled through an inductive element to the second portion. The first portion is coupled to a signal source. The second portion includes a plurality of bends such that a coupling gap is formed between an open end of the second portion and the first portion. The second radiation element has a shorted end and an open end. The shorted end of the second radiation element is coupled to the ground element. The second radiation element extends and at least partially surrounds the first radiation element. | 05-08-2014 |
20140152519 | WIRE CAPACITOR, IN PARTICULAR FOR A RADIO FREQUENCY CIRCUIT, AND DEVICE COMPRISING SAID WIRE CAPACITOR - The invention relates to a radio frequency device including an antenna connected to a capacitor. Said capacitor includes first and second conductive plates that are opposite each other and separated by an insulator. At least one of said first and second plates is formed of a plurality of wire capacitor portions. Said radio frequency device is different in that the antenna and at least one capacitor plate are formed with wire portions placed on a substrate in a guided manner. | 06-05-2014 |
20140168021 | ANTENNA MODULE AND ELECTRONIC APPARATUS INCLUDING THE SAME - An antenna module and an electronic apparatus include: an antenna element, and a clip which includes an antenna pattern, is formed of a metallic material, and electrically connects the antenna element to a circuit board to process an antenna signal through the antenna pattern. | 06-19-2014 |
20140176376 | Smart Antenna Systems for Reception of Digital Television Signals - A reconfigurable antenna is disclosed that includes a ground plane, an electrically-conductive microstrip patch element, and a plurality of switches. The patch element is spaced-apart from the ground plane with a dielectric medium between the patch element and the ground plane. The switches are coupled between the ground plane and the patch element. The switches are openable and closable, for example, in response to a control signal from an external television device to configure the state of the reconfigurable antenna. Additional reconfigurable antenna elements are disclosed. Antenna arrays including reconfigurable antenna elements, switchable fixed elements, or a combination thereof are also disclosed. | 06-26-2014 |
20140184458 | WIRELESS COMMUNICATION DEVICE - The invention includes a first circuit board on which a plurality of first terminal sections is arranged, a high-frequency circuit arranged on the first circuit board and connected to at least one of the plurality of first terminal sections, a second circuit board on which is arranged a plurality of second terminal sections facing the plurality of first terminal sections, a first internal circuit arranged on the second circuit board and connected to at least one of the plurality of second terminal sections, and electrical continuity unit providing electrical continuity among the plurality of first terminal sections and the plurality of second terminal sections. At least two contiguous terminals of the plurality of first terminal sections and/or the plurality of second terminal sections including a terminal connected to the high-frequency circuit are connected via a capacitor and function as an antenna for wireless communication. | 07-03-2014 |
20140198002 | Dipole Antenna - A dipole antenna, comprising: a dipole arrangement comprising at least a pair of antenna arms, each antenna arm having a feed end and a distal end, the feed ends positioned in proximity to each other; a feed structure, coupled to said dipole arrangement, comprising a balun for providing the antenna with a balanced feed; wherein, each antenna arm comprises: a conductive end plate, located at the distal end of the respective antenna arm; and an inductive coil, located at the feed end of the respective antenna arm. | 07-17-2014 |
20140198003 | Antenna Device - An antenna device is provided and includes a circuit board, a first linear antenna, and a second linear antenna. The circuit board includes a grounding pattern and a feeding point insulated from the grounding pattern. The first linear antenna is connected to the grounding pattern and includes a first inductive element positioned between distal ends of the first linear antenna. The second linear antenna is connected to the feeding point and capacitively coupled to one of the distal ends of the first linear antenna. The second linear antenna includes a second inductive element positioned proximate a middle section of the second linear antenna. | 07-17-2014 |
20140203981 | ANTENNA DEVICE AND COMMUNICATION TERMINAL DEVICE - An antenna device includes a first conductor plane and a second conductor plane that face each other. The first conductor plane and the second conductor plane are electrically continuous through a first connection conductor, a second connection conductor, and a chip capacitor. A power feed coil is disposed between the first conductor plane and the second conductor plane. The power feed coil includes a magnetic core and a coil conductor. The coil conductor defines a pattern such that the coil conductor winds around the magnetic core. The power feed coil is disposed at a position closer to the first connection conductor and magnetically couples with the first connection conductor. | 07-24-2014 |
20140218246 | ANTENNA DEVICE AND COMMUNICATION TERMINAL APPARATUS - A multiband-capable antenna device includes a loop-shaped radiation element including a power feed end and a ground end, and a matching circuit including a first inductance element loaded at the power feed end and a second inductance element loaded at the ground end and magnetic-field coupled to the first inductance element. The loop-shaped radiation element is configured to resonate in a plurality of resonance modes including an even mode and an odd mode. The first inductance element and the second inductance element are wound and connected such that magnetic fields are mutually strengthened for one of the even mode and the odd mode, and such that the magnetic fields are mutually weakened for the other of the even mode and the odd mode. | 08-07-2014 |
20140247189 | MULTIBAND WHIP ANTENNA - A multiband antenna, including an elongate radiating element including a first elongate portion and a second elongate portion, a coil galvanically connected to the first elongate portion of the elongate radiating element, a radio-frequency connector galvanically connected to the coil, a conductive layer enclosing at least the coil and the first elongate portion of the elongate radiating element and spaced apart therefrom and at least one conductive choke surrounding a part of the second elongate portion of the elongate radiating element and spaced apart therefrom, the elongate radiating element in conjunction with the at least one conductive choke being operative to radiate in a low frequency band and at least one high frequency band. | 09-04-2014 |
20140292599 | Packaged Capacitor Component with Multiple Self-Resonance Frequencies - A packaged capacitor component such as a surface mount technology capacitor component may be formed with multiple self-resonant frequencies. The capacitor component may include multiple capacitor portions separated by dielectric layers. The capacitor portions may each be formed from interleaving conductive layers. Additional dielectric layers may be interposed between the interleaving conductive layers. Each capacitor portion may be characterized by a corresponding self-resonance frequency. If desired, a packaged capacitor component having multiple self-resonant frequencies may be formed by stacking multiple surface-mount capacitor components. Each of the stacked surface-mount capacitor components may include interleaving conductive layers that are centered between top and bottom surfaces of that component. Packaged capacitor components having multiple self-resonance frequencies may be used as direct-current blocking capacitors or decoupling capacitors. | 10-02-2014 |
20140292600 | ANTENNA AND WIRELESS COMMUNICATION APPARATUS - An antenna includes a first layer including a pattern so as to configure an inductor, a second layer forming capacitance that is electrically coupled with inductance of the inductor, and a third layer configuring an electric wall, the first layer being disposed between the third layer and the first layer. | 10-02-2014 |
20140292601 | PLANAR ANTENNA APPARATUS AND METHOD - A planar antenna apparatus is provided. The apparatus includes a first radiation unit configured to transmit a signal, a first feed unit configured to feed a current to the first radiation unit and apply the signal to be transmitted to the first radiation unit, a first Radio Frequency (RF) ground to which a plurality of antenna elements are grounded; and a via that connects the first radiation unit to the first RF ground, wherein all of the first radiation unit, the first feed unit, the first RF ground, and the via are disposed on a first plane, and wherein a capacitance value between the first radiation unit and the first feed unit and an inductance value determined by a length and a width of the radiation unit are set as values that cause a resonant frequency in a specific frequency band to be a preset value. | 10-02-2014 |
20140292602 | MULTIBAND ANTENNA AND MOBILE TERMINAL - The antenna has a configuration in which three inductors, i.e., first to third inductors | 10-02-2014 |
20140306856 | Antenna and Mobile Terminal - An antenna and a mobile terminal are disclosed that relate to the communications field. The antenna includes a ground cable and a feeder, where the feeder includes a low-frequency branch and a high-frequency branch; the low-frequency branch and the high-frequency branch have a common endpoint; the low-frequency branch is surrounded by the ground cable to form a coupled loading mode and an equivalent coupled feed loop antenna radiation mode; and the high-frequency branch is set outside the ground cable to complete a high-frequency monopole radiation mode. The mobile terminal includes a printed circuit board (PCB) and the antenna, and the antenna is printed on the PCB. An embodiment of the present invention resolves a problem of insufficient low-frequency bandwidth and insufficient high-frequency bandwidth in the prior art, effectively improves performance of the antenna, and can effectively disperse near-field energy to the PCB and the mobile terminal. | 10-16-2014 |
20140320358 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. An edge of the ground element has a notch, and the antenna element includes a metal element disposed inside the notch. The metal element of the antenna element has a first end and a second end. The first and second ends are spaced away from each other and are respectively positioned adjacent to two ends of a diagonal line of the notch. The first end is used as a first feeding point of the antenna element, and the second end is used as a second feeding point of the antenna element. The first feeding point is coupled through a switch and a first matching circuit to a first signal source, and the second feeding point is coupled through an inductive element and a second matching circuit to a second signal source. | 10-30-2014 |
20140320359 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. The antenna element includes a metal element. The metal element is disposed at or adjacent to an edge of the ground element. The metal element is substantially perpendicular to the ground element. The metal element has a projection on the ground element, and the whole projection is in the internal of the ground element. The antenna element has a first feeding point and a second feeding point. The first and second feeding points are away from each other. The first and second feeding points are substantially positioned at two ends of the metal element, respectively. The first feeding point is coupled through a first switch and a first matching circuit to a communication module. The second feeding point is coupled through a second switch and a second matching circuit to the communication module. | 10-30-2014 |
20150035712 | COMMUNICATION DEVICE AND ANTENNA ELEMENT THEREIN - A communication device includes a ground element and an antenna element. The antenna element includes a loop metal element and a branch metal element. The loop metal element is adjacent to an edge of the ground element. The loop metal element has a feeding end and a grounding end. The grounding end is coupled to the ground element. The feeding end is coupled through a capacitive element and a first inductive element to a signal source. A closed region is enclosed by the loop metal element and the edge of the ground element. The branch metal element is coupled through a second inductive element to a connection point on the loop metal element. The connection point is at the front-half portion of the loop metal element. The front-half portion includes the feeding end. The branch metal element substantially extends along an outer periphery of the loop metal element. | 02-05-2015 |
20150035713 | ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE USING THE SAME - An antenna device | 02-05-2015 |
20150054699 | TUNABLE MULTIBAND MULTIPORT ANTENNAS AND METHOD - An antenna, comprising a plurality of feed points and tuning elements for tuning a resonant frequency at each feed point independently of the others of the plurality of feed points. The tuning elements are placed on the configured radiating element such that for a given feed point its tuning element is placed on the configured radiating element where a current distribution of the other feed points is a minimum. | 02-26-2015 |
20150061951 | COMMUNICATION DEVICE AND SMALL-SIZE MULTI-BRANCH MULTI-BAND ANTENNA ELEMENT THEREIN - A communication device including a ground element and an antenna element is provided. The antenna element has a first connection point, and at least includes a first branch, a second branch, and a third branch. One end of the first branch is coupled through an inductive element to the first connection point. One end of the second branch is coupled to the first connection point. A second segment of the second branch is substantially parallel to a first segment of the first branch. The second branch is disposed between the first branch and an edge of the ground element. One end of the third branch is coupled to a second connection point on the first branch. The third branch and the first branch substantially extend in opposite directions. The first connection point is further coupled through a high-pass matching circuit to a signal source. | 03-05-2015 |
20150061952 | Broadband Antenna - A broadband antenna for a wireless transceiver includes a grounding unit for grounding; a radiating part; a signal feed-in element for transmitting a radio signal to the radiating part in order to emit the radio signal via the radiating part, where a grounding terminal of the signal feed-in element is electrically connected to the grounding unit; a feed-in point, located on the radiating part; a capacitor, electrically connected between the feed-in point and the signal feed-in element; and an inductor, having a first terminal electrically connected to the capacitor. | 03-05-2015 |
20150061953 | Antenna and Electronic Device - An antenna for an electronic device includes a grounding sheet for providing grounding, a metal sheet having a shape substantially corresponding to a rectangular with a first section at a first corner, a feed-in unit electrically connected to the metal sheet corresponding to a second corner adjacent to the first corner of the rectangular, for transmitting electromagnetic energy, and a shorting wall electrically connected to the grounding sheet and a first side of the metal sheet, for forming a resonating cavity, wherein the first side is opposite to a second side of the metal sheet, and the second side is adjacent to the first and second corners, wherein a length and a width of the rectangular are respectively related to frequency ranges of at least one operating frequency band, and the first section increases a frequency range of a first frequency band of the operating frequency bands. | 03-05-2015 |
20150077298 | MOBILE DEVICE AND ANTENNA STRUCTURE USING IONIC POLYMER METAL COMPOSITE THEREIN - A mobile device includes an antenna structure, a signal source, and an IPMC (Ionic Polymer Metal Composite). The signal source is configured to excite the antenna structure. The IPMC is configured as a flexible actuator to adjust a resonant length of the antenna structure in such a manner that the antenna structure is capable of operating in multiple bands. | 03-19-2015 |
20150077299 | COMPACT ANTENNA SYSTEM - An antenna system for global navigation satellite systems includes a ground plane, an active antenna disposed above the ground plane, and a passive antenna disposed below the ground plane. The active antenna includes a conducting ring substantially parallel to the ground plane. A radiating conductor passes through substantially the center of the conducting ring; the ends of the radiating conductor are electrically connected to the conducting ring. An excitation pin is electrically connected to the radiating conductor. A set of reactive impedance elements is electrically connected between the conducting ring and the ground plane. The set of reactive impedance elements is disposed substantially orthogonal to the ground plane. The passive antenna is similar to the active antenna, except the passive antenna does not have an excitation pin. The antenna system effectively suppresses multipath reception, and its compact size and light weight make it suitable for integration with a surveying pole. | 03-19-2015 |
20150145738 | COMMUNICATION DEVICE WITH COUPLED-FED MULTIBAND ANTENNA ELEMENT - A communication device includes a ground element and an antenna element. The antenna element is disposed on a dielectric substrate which is adjacent to an edge of the ground element. The antenna element includes a radiating element, a shorting element and a feeding element. The radiating element has a first open end, a second open end and a shorting point. The radiating element is divided into a first element and a second element by the shorting point. The first element includes the first open end, and the second element includes the second open end. One end of the shorting element is coupled to the shorting point through a first inductive element, and another end is electrically connected to the ground element. The feeding element and the first element are spaced by a coupling gap, and the feeding element is coupled to a signal source through a matching circuit. | 05-28-2015 |
20150318607 | Non-Foster Active Impedance Circuit for Electrically Small Antennas - An antenna comprising: a driven element; an input feed coupled to the driven element wherein the input feed is configured to be connected to a receiver; a non-Foster circuit having a negative impedance, wherein the non-Foster circuit is configured to actively load the antenna at a location on the antenna other than at the input feed; and wherein the antenna may be contained within an imaginary sphere having a radius a, and wherein the product ka is less than 0.5, where k is a wave number. | 11-05-2015 |
20150333399 | TUNABLE LONG TERM EVOLUTION ANTENNA - A tunable long term evolution antenna comprises a feeding portion, a grounding portion, a first radiation portion, a second radiation portion and a coupling radiation portion. The shape of the first radiation portion is a strip. Two terminals of the strip respectively are a first terminal and a second terminal. The first terminal is connected to the feeding portion and the grounding portion. The second radiation portion is connected to the grounding portion and the first terminal of the first radiation portion. The coupling radiation portion has a switching terminal coupled to a switch, a low frequency coupling portion and a high frequency coupling portion. The switch controls the switching terminal to be coupled to the ground or floating. The tunable long term evolution antenna operates in a LTE technology mode or a 3G mode depending on the switching terminal is coupled to the ground floating. | 11-19-2015 |
20150340763 | Compact Antenna System with Reduced Multipath Reception - An antenna is configured to operate with circularly-polarized electromagnetic radiation in a low-frequency band and in a high-frequency band. The antenna comprises a ground plane and a radiator. The radiator comprises four pairs of radiating elements disposed as pairs of spiral segments on a cylindrical surface having a longitudinal axis orthogonal to the ground plane. Each pair of radiating elements comprises a low-frequency radiating element and a high-frequency radiating element. The low-frequency radiating element comprises a low-frequency conductive strip. The high-frequency radiating element comprises an electrically-connected series of at least one high-frequency conductive strip and at least one high-frequency capacitor. The electrical path lengths of the low-frequency radiating elements and the electrical path lengths of the high-frequency radiating elements are equal. | 11-26-2015 |
20160013559 | BRIDGELESS ANTENNA, AND METHOD OF MANUFACTURE | 01-14-2016 |
20160028159 | NEAR FIELD COMMUNICATION ANTENNA - An antenna of a near field wireless communication device is provided. The antenna may include: a source coil pattern formed on one surface of a flexible printed circuit board (FPCB) and formed with a first conductive line between a first antenna port and a second antenna port; a resonance coil pattern formed with a second conductive line, which electrically separates from the source coil pattern; and a capacitor pattern electrically connected to the second conductive line, wherein one terminal of the capacitor pattern is connected to a first terminal of the second conductive line and the other terminal of the capacitor pattern is connected to a second terminal of the second conductive line through a third conductive line formed on the other surface of the FPCB. | 01-28-2016 |
20160072188 | COMPACT MINIATURE HIDDEN ANTENNAS FOR MULTI FREQUENCY BANDS APPLICATIONS - Disclosed is a compact antenna assembly and a method for making an antenna that is adapted to receive radio waves within the 200 MHz-2800 Mhz frequency band. The antenna assembly includes a meander line antenna trace of a desired geometry having a plurality of bends and strips that is configured to reduce the effect of electromagnetic interference. The antenna trace is placed on a dielectric substrate that is configured to receive the antenna trace along a surface thereon. At least one break point element is positioned along the meander line antenna trace wherein the at least one break point element is configured to be positioned along the antenna trace at various locations to adjust a resonant frequency of the antenna assembly according to the desired application. | 03-10-2016 |
20160111786 | LOOP ANTENNA WITH A MAGNETICALLY COUPLED ELEMENT - A loop antenna with a magnetically coupled element is described. In an embodiment, the loop antenna comprises a loop element that has a feed contact and a ground contact. The loop antenna further comprises an open ended conductor that is magnetically coupled around the ground contact. | 04-21-2016 |
20160164192 | ANTENNA ASSEMBLY AND WIRELESS COMMUNICATION DEVICE EMPLOYING SAME - An antenna assembly includes a first radiating portion, a second radiating portion, a third radiating portion, and a switch circuit. The switch circuit is electrically connected between the second radiating portion and the third radiating portion. The switch circuit includes a plurality of branch circuit with different impedances. The first radiating portion and the second radiating portion are electrically coupled and configured to operate at a first frequency band; the first radiating portion, the third radiating portion, the switch circuit, and the second radiating portion are electrically coupled and configured to operate at a second frequency band; the switch circuit is configured to adjust a resonance mode of the antenna assembly by switching to different impedances. A wireless communication device employing the antenna assembly is also provided. | 06-09-2016 |
20220140486 | Antenna Apparatus and Electronic Device - An antenna has an exciting element disposed above a ground plane of an electronic device. Power fed to the exciting element excites the ground plane to generate radiation. In this way, radiation capability of the ground plane is not affected by clearance between a display screen and the ground plane, and the antenna is applicable to an electronic device with limited antenna space. In addition, the ground plane serves as a radiation aperture of the electronic device. | 05-05-2022 |