Patents
Patents for H03H 5 - One-port networks comprising only passive electrical elements as network components (778)
03/2005
03/16/2005CN1595797A Ultra-high-frequency notch filter
03/12/2005CA2457252A1 Ultra-high-frequency notch filter
03/08/2005US6864758 Apparatus and resonant circuit employing a varactor diode in parallel with a transmission line and method thereof
02/2005
02/16/2005CN1189900C Integrated dual frequency noise attenuator
02/09/2005CN1188928C Electronic component contg. LC
01/2005
01/27/2005WO2005008903A2 A power line communication system and method of operating the same
01/27/2005WO2005008902A2 A power line communication system and method of operating the same
01/27/2005US20050020233 Repeaters sharing a common medium for communications
01/18/2005US6844810 Arrangement of a data coupler for power line communications
01/06/2005US20050001694 Power line communication system and method of operating the same
01/06/2005US20050001693 Power line communication system and method of operating the same
12/2004
12/29/2004CN2667769Y 可控式阻尼器 Controllable dampers
12/23/2004WO2004036772A3 Arrangement of a data coupler for power line communications
12/16/2004US20040251985 Integrated bi-band inductance and applications
12/15/2004EP1485966A2 A device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
12/09/2004US20040246072 Resonator device, filter, duplexer and communication device
11/2004
11/25/2004US20040232519 Electronic device and method of testing and of manufacturing
11/10/2004EP1475889A2 Antenna matching circuit, mobile communication device including antenna matching circuit, and dielectric antenna including antenna matching circuit
11/04/2004US20040217915 Antenna matching circuit, mobile communication device including antenna matching circuit, and dielectric antenna including antenna matching circuit
11/03/2004EP1473833A1 Integrated two-band inductance and its applications
10/2004
10/27/2004CN1541444A Electronic device and method of testing and of mfg.
09/2004
09/30/2004WO2004036879A3 Filter for segmenting power lines for communications
09/10/2004WO2004036813A3 Repeaters sharing a common medium for communications
08/2004
08/12/2004US20040155722 Powerline networking device
08/11/2004EP1023770A4 Surface mount lc filter with polymer layers
08/04/2004EP1344233B1 Variable capacitance voltage-controllable by use of coulomb barrier phenomenon
08/03/2004US6771143 Device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
07/2004
07/14/2004EP1436893A2 Electronic device and method of testing and of manufacturing
07/13/2004US6762655 Circuit arrangement
06/2004
06/01/2004US6744330 Adaptive analog equalizer
05/2004
05/19/2004CN1150654C Narrow-band filter using frequency transformation inducor and slope pi capacitor
05/13/2004US20040090284 Arrangement of a data coupler for power line communications
05/06/2004WO2003017479A3 Electronic device and method of testing and of manufacturing
05/06/2004US20040085172 Filter for segmenting power lines for communications
05/06/2004US20040085171 Highly insulated inductive data couplers
04/2004
04/29/2004WO2004036879A2 Filter for segmenting power lines for communications
04/29/2004WO2004036813A2 Repeaters sharing a common medium for communications
04/29/2004WO2004036772A2 Arrangement of a data coupler for power line communications
04/29/2004WO2004036601A2 Highly insulated inductive data couplers
04/29/2004CA2502122A1 Filter for segmenting power lines for communications
04/29/2004CA2502107A1 Repeaters sharing a common medium for communications
04/29/2004CA2502104A1 Arrangement of a data coupler for power line communications
04/21/2004EP1008234B1 High temperature superconducting structures and methods for high q, reduced intermodulation structures
04/01/2004WO2003079558A3 A device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
03/2004
03/24/2004CN1143328C Distributed tunable induction element for differential circuit and forming method
03/11/2004US20040047110 Variable capacitance voltag-controlllable by use of coulomb barrier phenomenon
03/04/2004US20040041668 High-frequency circuit device and transmitter/receiver
01/2004
01/29/2004US20040017265 Device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
12/2003
12/31/2003CN1133267C Monolithic inductive capacity reconance and monolithic inductive capacity filter
12/24/2003CN1132309C Impedance means and its control method
12/10/2003EP1369881A2 Electrical multilayer component
12/04/2003WO2003100972A1 Complex resonance circuit and filter
12/04/2003WO2003100971A1 Lc parallel resonance circuit, multilayer board incorporating lc parallel resonance circuit, and their production methods therefor
12/04/2003WO2003100970A1 Lc series resonance circuit, board incorporating lc series resonance circuit, and production methods therefor
10/2003
10/30/2003US20030201843 Apparatus and resonant circuit employing a varactor diode in parallel with a transmission line and method thereof
10/29/2003CN1126245C Surface mount filter with polymer layers
09/2003
09/25/2003WO2003079558A2 A device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
09/25/2003CA2479173A1 A device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
09/17/2003EP1344233A2 Variable capacitance voltage-controllable by use of coulomb barrier phenomenon
09/10/2003CN1441512A High frequency circuit device and transmit-receiving device
08/2003
08/27/2003EP1339130A2 High-frequency circuit device and transmitter/receiver including the same
06/2003
06/24/2003US6583686 LC-included electronic component
06/05/2003US20030103341 Shielding structure for resonant circuit
06/04/2003EP1317170A2 Shielding structure for resonant circuit
05/2003
05/15/2003US20030090347 Integrated radiofrequency circuit component
05/08/2003US20030087765 Resonators; microwave filter
04/2003
04/15/2003US6549099 Electrically-coupled mechanical band-pass filter
04/15/2003US6549096 Switched inductor/varactor tuning circuit having a variable integrated inductor
04/01/2003US6542540 Integrated analog adaptive equalizer
03/2003
03/12/2003EP1290788A2 Method and apparatus for selecting at least one desired channel utilizing a bank of vibrating micromechanical apparatus
02/2003
02/27/2003WO2003017479A2 Electronic device and method of testing and of manufacturing
02/26/2003EP1286465A1 Microelectromechanical device
02/26/2003EP1285491A2 Method and apparatus for generating a signal having at least one desired output frequency utilizing a bank of vibrating micromechanical devices
02/18/2003US6522033 High sensitivity electrical switching circuit
02/13/2003WO2002041341A3 Variable capacitance voltage-controllable by use of coulomb barrier phenomenon
02/13/2003US20030030998 Microelectromechanical component
02/13/2003US20030030527 Microelectromechanical component
02/06/2003CA2397187A1 Microelectromechanical component
02/05/2003CN1395366A Electric coupling machinery hand-pass filter
01/2003
01/30/2003US20030022653 High impedance circuit
01/28/2003US6512427 Spurious signal reduction circuit
01/22/2003EP1277277A2 Method and subsystem for processing signals utilizing a plurality of vibrating micromechanical devices
01/21/2003US6509805 LC resonance circuit and voltage-controlled oscillation circuit
01/15/2003EP1276126A1 Microelectromechanical device
01/15/2003EP1275201A2 Method and apparatus for filtering signals in a subsystem including a power amplifier utilizing a bank of vibrating micromechanical apparatus
01/09/2003US20030006861 Electrically-coupled mechanical band-pass filter
01/02/2003EP1271775A1 Band-pass filter
01/02/2003EP1269561A1 Component with an integrated high-frequency circuit
01/02/2003CA2389820A1 Microelectromechanical component
12/2002
12/10/2002CA2273732C Impedance matching circuit
10/2002
10/31/2002US20020158711 Switched inductor/varactor tuning circuit having a variable integrated inductor
10/15/2002US6466626 Driver with in-situ variable compensation for cable attenuation
09/2002
09/11/2002EP0864199B1 An impedance means
09/11/2002CN1090828C HF stripline resonator
08/2002
08/20/2002US6438394 Frequency dependent inductor apparatus and method for a narrow-band filter
08/20/2002US6437666 Monolithic LC resonator and monolithic LC filter with tubular inductor
08/15/2002WO2001082476A3 Method and apparatus for selecting at least one desired channel utilizing a bank of vibrating micromechanical apparatus
07/2002
07/30/2002US6426681 High power adjustable RF coupling loop
07/25/2002US20020097114 Spurious signal reduction circuit
07/25/2002US20020097106 High power adjustable rf coupling loop
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