| Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104) |
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| 11/10/1993 | CN2146085Y Frequency mixing matching device for TV antenna |
| 11/03/1993 | EP0567766A1 Antenna duplexer for vehicle |
| 10/26/1993 | US5256997 Linear phased filter for reducing ripple in group delay |
| 10/26/1993 | US5256996 Integrated coplanar strip nonlinear transmission line |
| 10/20/1993 | CN1077580A Bandpass filter for a carrier-frequency signal |
| 10/14/1993 | WO1993020616A1 A method for tuning an rf bandpass filter |
| 10/14/1993 | WO1993020523A1 Designing and evaluating filters for suppressing undesired signals |
| 10/13/1993 | EP0564934A2 Band press filter for a carrier frequency signal |
| 10/06/1993 | EP0564114A1 Impedance matching and bias feed network |
| 10/05/1993 | US5251120 Harmonic noise isolation and power factor correction network |
| 10/05/1993 | US5250915 Laminate type LC filter |
| 09/30/1993 | WO1993019527A1 Hybrid coupler |
| 09/22/1993 | EP0561676A1 High frequency tunable filter |
| 09/22/1993 | EP0561559A1 Electrically-and-magnetically-coupled, batteryless, portable frequency divider |
| 09/18/1993 | CA2092667A1 High-frequency tunable filter |
| 09/10/1993 | CA2062494A1 Impedance matching variable output audio frequency coupler |
| 09/08/1993 | CN2141950Y Device for matching 75 ohms with 300 ohms |
| 09/07/1993 | US5243431 Audio bandpass filter adaptive to differing television standards |
| 09/01/1993 | EP0557929A1 Control circuit for automatically controlled feed forward nonlinear distortion compensation amplifier |
| 08/31/1993 | US5241298 Electrically-and-magnetically-coupled, batteryless, portable, frequency divider |
| 08/25/1993 | EP0556398A1 Wide band frequency allotment type signal selection device utilizing electromagnetic coupling |
| 08/17/1993 | US5237296 Composite electronic parts having open-circuits stub and short-circuited stub |
| 08/17/1993 | US5237295 Printed networks for improving electrical isolation at high frequencies |
| 08/03/1993 | US5233310 Microwave integrated circuit |
| 07/28/1993 | EP0552955A1 Electronically tuned matching network using predictor-corrector control system |
| 07/27/1993 | US5231364 Phaseshift network for an IQ modulator |
| 07/27/1993 | US5231078 Thin film superconducting LC network |
| 07/13/1993 | US5227748 Filter with electrically adjustable attenuation characteristic |
| 07/13/1993 | US5227746 Laminate lc filter having combined condenser and coil functions |
| 07/13/1993 | US5227743 Automatic filter adjusting apparatus |
| 07/07/1993 | CN1021534C Zero passage signal homomorphic treating method |
| 07/06/1993 | US5225969 Multilayer hybrid circuit |
| 06/30/1993 | EP0549192A1 Spurious frequency suppressor |
| 06/29/1993 | US5223807 Frequency-fluctuating interference removed receiver |
| 06/15/1993 | US5220298 Integrated circuit having a built-in noise filter |
| 06/09/1993 | CN2135876Y Inner-cooling strong-current wave filter |
| 06/08/1993 | US5218326 Distributed reflection scrambling technique |
| 06/08/1993 | CA1318953C Twisted pair adapter |
| 06/02/1993 | CN1072807A Wide band lumped parameter 90 deg directional coupler |
| 06/01/1993 | US5216392 In a radio |
| 06/01/1993 | US5216355 Electronic volume controller |
| 05/25/1993 | US5214505 Automatic rf equalization in passenger aircraft video distribution system |
| 05/25/1993 | US5214395 Parasitic signal suppression circuit for an extremely high frequency oscillator |
| 05/18/1993 | US5212492 Matching element for mobile antenna |
| 05/05/1993 | EP0540286A1 High-frequency power divider and combiner |
| 05/04/1993 | US5208537 Method for matching antennas in a nuclear magnetic resonance imaging apparatus |
| 05/04/1993 | US5208213 Variable superconducting delay line having means for independently controlling constant delay time or constant impedance |
| 05/01/1993 | WO1993009574A1 Filter circuit for attenuating high frequency signals |
| 04/29/1993 | WO1993008640A1 High-frequency electric filter of any order |
| 04/28/1993 | EP0539262A1 Device for improving the simultaneous operation of interfering transmitter-receivers and a frequency-agile transmitter receiver |
| 04/28/1993 | EP0538317A1 A method for improving stop-band attenuation of a duplex filter |
| 04/28/1993 | EP0341239B1 Antenna tuning apparatus for personal communications devices |
| 04/28/1993 | EP0333817B1 Adapter between coaxial cable and twisted pair cables |
| 04/27/1993 | US5206607 Input matching circuit |
| 04/23/1993 | CA2081192A1 Device for improving the cohabitation of radio-electric transceivers with frequency hopping transceivers in the presence of jammers |
| 04/21/1993 | EP0537459A1 An electric, RF noise-attenuating filter for power supply control devices |
| 04/21/1993 | EP0490903B1 Microwave filter |
| 04/20/1993 | US5204644 Circuit arrangement for distributing or for combining radio-frequency power |
| 04/20/1993 | US5204643 Controllable high-frequency attenuator |
| 04/13/1993 | US5202656 Frequency shifting tuning process and filter structure |
| 04/13/1993 | US5202653 Band-pass filter including resonance elements coupled by a coupling line and a by-pass coupling line |
| 04/13/1993 | US5202651 Band-stop filter circuit suitably made into monolithic microwave integrated circuits |
| 04/06/1993 | US5200718 Balun transformer with common mode coil |
| 04/06/1993 | US5200703 Anti-interference filter for a gradient coil in a nuclear magnetic resonance imaging apparatus |
| 04/01/1993 | DE4131319A1 Filter with pole point(s) in attenuation region - has at least one coupling element replaced by resonator circuit |
| 03/30/1993 | US5197170 Method of producing an LC composite part and an LC network part |
| 03/24/1993 | EP0532717A1 Multimedia high speed network |
| 03/23/1993 | US5196931 Highly efficient coding apparatus producing encoded high resolution signals reproducible by a vtr intended for use with standard resolution signals |
| 03/23/1993 | CA1314948C Distributed constant type delay line device and a manufacturing method thereof |
| 03/09/1993 | US5192924 Filter circuit for attenuating high frequency signals |
| 03/04/1993 | WO1993004562A1 Impedance matching |
| 03/02/1993 | US5191303 High speed probe attenuator |
| 02/25/1993 | DE4206278A1 Integriertes schaltkreis-bauelement mit unterdrueckten stromversorgungsstoerungen Integrated-circuit-component-with oppressed stromversorgungsstoerungen |
| 02/23/1993 | US5189382 Electrical filter with orthogonally conducting capacitors |
| 02/23/1993 | US5187857 Apparatus for manufacturing electronic parts wrapped with conductive foil |
| 02/17/1993 | EP0527468A1 High frequency module |
| 02/16/1993 | US5187488 Tunable high-frequency antenna |
| 02/16/1993 | US5187457 Harmonic and subharmonic filter |
| 02/16/1993 | US5187456 Line filter |
| 02/16/1993 | US5187454 Electronically tuned matching network using predictor-corrector control system |
| 02/09/1993 | US5185580 Electrical transmission cable termination device having short and open-circuit cable test capabilities |
| 02/02/1993 | US5184096 Parallel connection multi-stage band-pass filter comprising resonators with impedance matching means capacitively coupled to input and output terminals |
| 02/02/1993 | US5184045 Magnetron for a microwave oven having a pair of choke coils wound around a core in the same directions |
| 01/27/1993 | EP0524473A2 Three junction squid mixer |
| 01/19/1993 | US5180999 Filter system with controlled amplitude in stopband or passband |
| 01/13/1993 | EP0522524A1 Microwave hybrid directional coupler with concentrated constants and quadrature outputs |
| 01/12/1993 | US5179334 Power passing inductor capable of operation at frequencies higher than 900 MHz |
| 01/07/1993 | EP0521342A2 Equalizer for optical information transmitting systems |
| 01/07/1993 | EP0521341A2 Equalizer for optically transmitted communication signals |
| 01/05/1993 | US5177457 Variable delay line |
| 12/30/1992 | CN2126480U Micro-aerial |
| 12/29/1992 | US5175518 Wide percentage bandwidth microwave filter network and method of manufacturing same |
| 12/29/1992 | US5175517 Lumped element realization of ring hybrids including π circuit and tank circuit means |
| 12/23/1992 | CN1067343A Decametric wave coupling device between two unbalanced lines and balanced line |
| 12/22/1992 | US5173671 Monolithic lumped element networks |
| 12/10/1992 | DE4118384A1 Continuously variable attenuators esp. for cable TV signals - has two sets of quater-wavelength lines with equal wave impedances independent of frequency |
| 12/02/1992 | EP0516566A1 Quality factor improvement for filter applications |
| 12/01/1992 | US5168252 Line filter having a magnetic compound with a plurality of filter elements sealed therein |
| 12/01/1992 | US5168251 Quality factor improvement for filter application |
| 11/25/1992 | EP0515251A1 Decametric wave switching device between two assymetric lines and a symmetric line, and transmitting station comprising such device |