Patent application number | Description | Published |
20090025043 | Multiband receiving apparatus and multiband transmitting apparatus using tunable filter - A multiband receiving apparatus and multiband transmitting apparatus using a tunable band is provided. The receiving apparatus includes a receiving unit for receiving radio frequency (RF) signals, and a tunable filter unit for selectively outputting the received RF signals. As a result, a complicated RF transceiving system is simplified, and time and cost for developing and designing a transceiving apparatus are reduced. | 01-22-2009 |
20090114513 | MICRO ELECTROMECHANICAL SYSTEM (MEMS) SWITCH - A Micro ElectroMechanical System (MEMS) switch is provided. The MEMS switch includes a ground, a moving unit moveable according to a driving signal, for connecting the input to the output or disconnecting the input from the output, and an electrode unit arranged in the configuration of a protrusion formed on a portion of the round, to induce a leakage signal generated between the input and the output to move toward the ground. | 05-07-2009 |
20090115553 | TUNABLE RESONATOR USING FILM BULK ACOUSTIC RESONATOR (FBAR) - A tunable resonator is provided. The tunable resonator includes a film bulk acoustic resonator (FBAR) for performing a resonance, and at least one driver which is arranged at a side of the FBAR and is deformed and brought into contact with the FBAR by an external signal, thereby changing a resonance frequency of the FBAR. Accordingly, a multiband integration and a one-chip manufacture can be implemented simply using a micro electro mechanical system (MEMS) technology and a mass production is possible. | 05-07-2009 |
20090115555 | TUNABLE RESONATOR AND TUNABLE FILTER - A tunable filter is provided which includes a filter unit comprising a pair of microstrips which are disposed facing each other, a capacitor unit connected to one side of the filter unit, and an adjustment unit for regulating the length of each of the pair of microstrips to adjust inductance of the filter unit, the adjustment unit being connected to the opposite side of the filter unit. The length of the microstrips may thereby be regulated in order to vary the frequency band. | 05-07-2009 |
20100095497 | MONOLITHIC DUPLEXER - A subminiature, high-performance monolithic duplexer is disclosed. The monolithic duplexer includes a substrate, a transmitting-end filter formed in a first area on an upper surface of the substrate, a receiving-end filter formed in a second area on the upper surface of the substrate, a packaging substrate, bonded on an area on the upper surface of the substrate, for packaging the transmitting-end filter and the receiving-end filter in a sealed state, and a phase shifter, formed on one surface of the packaging substrate and connected to the transmitting-end filter and the receiving-end filter, respectively, for intercepting a signal inflow between the transmitting-end filter and the receiving-end filter. | 04-22-2010 |
20100167498 | SUBSTRATE LEVEL BONDING METHOD AND SUBSTRATE LEVEL PACKAGE - Disclosed are a substrate level bonding method and a substrate level package formed thereby. The substrate level package includes a plurality of unit substrate sections, a base substrate, and a plurality of substrate adhesion sections. The unit substrate sections are separated from each other by holes. The base substrate is disposed to face the unit substrate sections. The substrate adhesion sections are interposed between the unit substrate sections and the base substrate to bond the unit substrate sections to the base substrate and which are formed of DFR material, whose at least one portion is uncured. | 07-01-2010 |
20100197064 | SILICON-BASED RF SYSTEM AND METHOD OF MANUFACTURING THE SAME - A RF system which includes a silicon substrate formed with at least one via-hole filled with conductive material so that both sides of the silicon substrate are electrically connected with one another; at least one flat device formed on one side of the silicon substrate; and at least one RF MEMS device formed on the other side of the silicon substrate. | 08-05-2010 |
20100321130 | RADIO FREQUENCY FRONT END MODULE AND MULTI BAND MODULE USING THE RADIO FREQUENCY FRONT END MODULE - Disclosed are a radio frequency (RF) front end module and a multi-band communication module using the RF front end module. The RF front end module may use a plurality of bandpass filters and at least one diplexer being connected to at least one of front ends or rear ends of two bandpass filters of the plurality of bandpass filters. | 12-23-2010 |
20110021162 | SYSTEM FOR TRANSMITTING/RECEIVING MULTI-BAND RADIO FREQUENCY SIGNAL USING DUAL INPUT, DUAL OUTPUT FILTER - A system for transmitting/receiving a multi-band Radio Frequency (RF) signal using a Dual Input, Dual Output filter is provided. The system may include a Single-Input Single-Output (SISO) filter and the Dual Input, Dual Output filter. The system for transmitting/receiving a multi-band Radio Frequency (RF) may be implemented in a Radio Frequency (RF) region, which includes an area from an end of an antenna to an end of a mixer in a mobile communication. | 01-27-2011 |
20110032053 | DUAL INPUT, DUAL OUTPUT FILTERING APPARATUS USING BULK ACOUSTIC WAVE RESONATOR, AND RESONATOR USED AS BULK ACOUSTIC WAVE RESONATOR - A Dual Input, Dual Output filtering apparatus using a Bulk Acoustic Wave Resonators (BAWR), and a resonator used as the BAWR may be provided. A Dual Input, Dual Output filtering apparatus may include a plurality of BAWRs connected in series and parallel. | 02-10-2011 |
20110085476 | Communication Apparatus to Support Multiband Communication - A communication apparatus to support multiband communication is provided. The communication apparatus may be applicable to, for example, a duplexer module for the multiband communication. The communication apparatus may be manufactured to be small and light by simplifying a circuit structure of the duplexer module. | 04-14-2011 |
20110095849 | BALUN INCLUDING A FILM BULK ACOUSTIC RESONATOR - Disclosed is a balun including a film bulk acoustic resonator (FBAR). The balun may be implemented using the FBAR to fabricate a small sized balun. Also, the balun may be implemented using the FBAR, thereby reducing a difference in two outputs. | 04-28-2011 |
20110102099 | PHASE SHIFTER USING BULK ACOUSTIC WAVE RESONATOR - A phase shifter using a Bulk Acoustic Wave Resonators (BAWR) is provided. The phase shifter using a BAWR may use a property of a phase shift with respect to a frequency of the BAWR, and also use at least one capacitor, at least one inductor, and the like. | 05-05-2011 |
20110279188 | RESONATOR USING CARBON NANO SUBSTANCE AND METHOD OF MANUFACTURING RESONATOR - A resonator and a method of manufacturing a resonator are provided. The resonator includes a sacrificial layer formed on a substrate, and a resonant structure formed on the sacrificial layer, the resonant structure comprising a carbon nano-substance layer and a silicon carbide layer. | 11-17-2011 |
20120013419 | RADIO FREQUENCY FILTER AND RADIO FREQUENCY DUPLEXER INCLUDING BULK ACOUSTIC WAVE RESONATORS - A Radio Frequency (RF) duplexer including Bulk Acoustic Wave Resonators (BAWRs) and an RF filter including BAWRs are provided. The RF duplexer may convert the received signal into a balance signal and output the balance signal via a dual-output port. The RF duplexer may also include a BAWR receiving filter unit including an input end to receive the balance signal from the dual-output port, and an output end used for dual output. The RF duplexer may also include a BAWR transmitting filter unit to transmit a transmitted signal to the antenna via a single-output port. | 01-19-2012 |
20120063106 | RF LAYERED MODULE USING THREE DIMENSIONAL VERTICAL WIRING AND DISPOSING METHOD THEREOF - Provided is a structure and disposing method of a radio frequency (RF) layered module using three dimensional (3D) vertical wiring. A first wafer in the RF layered module having the 3D vertical wiring may include a first RF device and at least one first via- hole. A second wafer may include a second RF device and at least one second via-hole disposed at a location corresponding to the at least one first via-hole. A vertical wiring may connect the at least one first via-hole and the at least one second via-hole. The vertical wiring may be configured to be connected to an external device through a bottom surface of the at least one first via-hole or a top surface of the at least one second via-hole. | 03-15-2012 |
20120112850 | MATCHING SEGMENT CIRCUIT TO WHICH RADIO FREQUENCY IS APPLIED AND RADIO FREQUENCY INTEGRATED DEVICES USING THE MATCHING SEGMENT CIRCUIT - Provided are a matching segment circuit, to which a radio frequency (RF) is applied, and an RF integrated device using the matching segment circuit. The matching segment circuit to which an RF is applied may include an input end connected to a first RF device, a parallel segment having a first capacitor and a first inductor connected in parallel, a second inductor connected to the parallel segment in series, and an output end connected to a second RF device. The first capacitor, the first inductor, and the second inductor may be configured so that an impedance of the first RF device and an impedance of the second RF device may match. | 05-10-2012 |
20120139664 | LOW PASS FILTER USING BULK ACOUSTIC WAVE RESONATOR (BAWR) - Provided are low pass filters using a bulk acoustic wave resonator (BAWR). A low pass filter may include an input terminal configured to be connected with a first radio frequency (RF) device, an output terminal configured to be connected with a second RF device, a parallel segment including a first BAWR, a third BAWR, and a fifth BAWR that may be connected in parallel with each other to a reference potential, a first series segment having a second BAWR and a first inductor, and a second series segment having a fourth BAWR and a second inductor, and connected in series with the first series segment. | 06-07-2012 |
20130027153 | BULK ACOUSTIC WAVE RESONATOR AND DUPLEXER USING BULK ACOUSTIC WAVE RESONATOR - A bulk acoustic wave resonator (BAWR) includes a bulk acoustic resonance unit and at least one compensation layer. The bulk acoustic resonance unit includes a first electrode, a second electrode, and a piezoelectric layer disposed between the first electrode and the second electrode. The first electrode, the second electrode, and the piezoelectric layer each include a material that modifies a resonance frequency based on a temperature, and the at least one compensation layer includes a material that adjusts the resonance frequency modified based on the temperature in a direction opposite to a direction of the modification. | 01-31-2013 |
20130033340 | BULK ACOUSTIC WAVE RESONATOR - Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include a bulk acoustic wave resonance unit and an anti-resonant frequency modifying unit to modify an anti-resonant frequency generated from the bulk acoustic wave resonance unit. | 02-07-2013 |
20130099122 | APPARATUS AND METHOD FOR SENSING TEMPERATURE - A temperature sensing apparatus and method are described to detect a change in a frequency due to a change in a temperature. An infrared light sensing apparatus and method are also provided. The temperature sensing apparatus may include an electrode to generate an electrical signal, a piezoelectric layer to convert the electrical signal into an acoustic wave, and a temperature sensitive layer formed by doping impurities in one or more structures formed on a substrate. Additionally, the infrared light sensing apparatus may convert into heat infrared light incident to an infrared light absorption layer, using an infrared light reflection layer and the infrared light absorption layer. A temperature sensitive layer may detect a change in a resonant frequency based on a change in a temperature of the heat, and may detect a change in infrared light based on the change in the resonant frequency. | 04-25-2013 |
20130140959 | BULK ACOUSTIC WAVE RESONATOR - Disclosed is a bulk acoustic wave resonator (BAWR). The BAWR includes a bulk acoustic wave resonance unit with a first electrode, a second electrode, and a piezoelectric layer. The piezoelectric layer is disposed between the first electrode and the second electrode. An air edge is formed at a distance from a center of the bulk acoustic wave resonance unit. | 06-06-2013 |
20130147320 | BULK ACOUSTIC WAVE RESONATOR AND MANUFACTURING METHOD THEREOF, AND RADIO FREQUENCY DEVICE USING BULK ACOUSTIC WAVE RESONATOR - Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include a first electrode, a piezoelectric layer disposed on the first electrode, a second electrode disposed on the piezoelectric layer. In various aspects, at least one of the first electrode, the piezoelectric layer, and the second electrode are formed of a carbon-based material. | 06-13-2013 |
20130181579 | BULK ACOUSTIC WAVE RESONATOR - Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include an air cavity disposed on a substrate, a bulk acoustic wave resonant unit including a piezoelectric layer, and a reflective layer to reflect a wave of a resonant frequency that is generated from the piezoelectric layer. | 07-18-2013 |
20130214876 | NANO SCALE RESONATOR, NANO SCALE SENSOR, AND FABRICATION METHOD THEREOF - A nano scale resonator, a nano scale sensor, and a fabrication method thereof are provided. The nano scale resonator includes a resonance unit of nano scale configured to resonate based on an applied signal, and an anchor on a substrate, the anchor being configured to support the resonance unit, the anchor having an air gap within boundaries of the anchor, the resonance unit, and the substrate, the air gap being configured to reflect a vertical wave occurring in the resonance unit. | 08-22-2013 |
20130248368 | SENSING APPARATUS USING RADIO FREQUENCY AND MANUFACTURING METHOD THEREOF - A sensing apparatus using a radio frequency and a manufacturing method thereof is provided. A sensing apparatus using a radio frequency includes a protecting layer configured to protect a substrate from migration of electrons occurring as the radio frequency is applied to a first electrode and a second electrode, a channel forming layer configured to form a channel based on a field between the first electrode and the second electrode, the channel forming layer using a polarized carbon-based nano material to form the channel, and a sensing layer configured to sense glucose using a medium material that is attached on the carbon-based nano material. | 09-26-2013 |
20130249643 | RADIO FREQUENCY (RF) FILTER AND RF TRANSCEIVER USING BULK ACOUSTIC WAVE RESONATOR (BAWR) - A filter and a transceiver in a radio frequency (RF) band, using a bulk acoustic wave resonator (BAWR), are provided. The RF filter includes at least one low temperature coefficient of frequency (TCF) BAWR. The RF filter further includes at least one high quality factor (Q) BAWR including a high Q compared to the at least one low TCF BAWR, the at least one low TCF BAWR including a low TCF compared to the at least one high Q BAWR. | 09-26-2013 |
20130249644 | PHASE SHIFTER USING BULK ACOUSTIC WAVE RESONATOR - A phase shifter using a Bulk Acoustic Wave Resonators (BAWR) is provided. The phase shifter using a BAWR may use a property of a phase shift with respect to a frequency of the BAWR, and also use at least one capacitor, at least one inductor, and the like. | 09-26-2013 |
20130302843 | METHOD OF MEASURING BIOLOGICAL SAMPLE PROPERTIES AND BIOLOGICAL SAMPLE PROPERTY MEASURING APPARATUS - A method of measuring biological sample properties and a biological sample property measuring apparatus is provided. A method of measuring biological sample properties includes disposing a biomaterial to contact a sensing unit, detecting a radio frequency (RF) signal flowing through the sensing unit, and obtaining an RF property indicator of the biomaterial based on the detected RF signal. | 11-14-2013 |
20140021443 | NANO RESONATOR AND MANUFACTURING METHOD THEREOF - A nano resonator includes a substrate, a first insulating layer disposed on the substrate, a first source disposed on the first insulating layer at a first position, a first drain disposed on the first insulating layer at a second position spaced apart from the first position so that the first drain faces the first source, a first nano-wire channel having a first end connected to the first source and a second end connected to the first drain, and having a doping type and a doping concentration that are identical to a doping type and a doping concentration of the first source and the first drain, and a second nano-wire channel disposed at a predetermined distance from the first nano-wire channel in a direction perpendicular to the substrate or a direction parallel to the substrate. | 01-23-2014 |
20140070671 | RESONANCE APPARATUS FOR PROCESSING ELECTRICAL LOSS USING CONDUCTIVE MATERIAL AND METHOD FOR MANUFACTURING THE SAME - A resonance apparatus that processes an electrical loss using a conductive material and a method of manufacturing the resonance apparatus are provided. The resonance apparatus includes a lower electrode formed at a predetermined distance from a substrate, and a piezoelectric layer formed on the lower electrode. The resonance apparatus further includes an upper electrode formed on the piezoelectric layer, and a conductive layer formed on the upper electrode or the lower electrode. | 03-13-2014 |
20140110763 | NANO RESONANCE APPARATUS AND METHOD - A nano resonance apparatus includes a gate electrode configured to generate a magnetic field, and a nanowire connecting a source electrode to a drain electrode and configured to vibrate in the presence of the magnetic field. The nanowire includes a protruding portion extending in a direction of the gate electrode. | 04-24-2014 |
20140191185 | APPARATUS AND METHOD FOR FABRICATING NANO RESONATOR USING LASER INTERFERENCE LITHOGRAPHY - A method of fabricating a nano resonator, includes forming a line pattern in a first substrate, and transferring the line pattern to a second substrate including a gate electrode. The method further includes forming a source electrode and a drain electrode on the transferred line pattern. | 07-10-2014 |
20140191825 | RADIO FREQUENCY FILTER AND MANUFACTURING METHOD THEREOF - A radio frequency filter and a manufacturing method thereof are provided. A radio frequency filter includes bulk acoustic wave resonators (BAWRs), the BAWRs including first BAWRs connected in series, second BAWRs connected in parallel, or a combination thereof. | 07-10-2014 |
20140203686 | RESONATOR AND FABRICATING METHOD THEREOF - Provided are a resonator and a method of fabricating the same. The resonator may include a first electrode disposed on a substrate, a piezoelectric layer disposed on the first electrode, a second electrode disposed on the piezoelectric layer, and a control layer disposed on the second electrode and having a frame with an uneven surface. | 07-24-2014 |