| Patents for H01P 1 - Auxiliary devices (25,484) |
|---|
| 06/26/1991 | EP0434296A2 Dielectric resonator, filter device using same and method of producing such dielectric resonator |
| 06/26/1991 | EP0434283A2 Planar array waveguide antenna with L-shaped series/series coupling slots |
| 06/26/1991 | EP0433288A1 Microwave switchgear |
| 06/25/1991 | US5027090 Filter having a dielectric resonator |
| 06/25/1991 | CA1285326C Microwave phase shifter |
| 06/19/1991 | EP0433092A2 Polarization converter having two converting devices therein |
| 06/19/1991 | EP0432851A2 Variable bi-phase modulator circuits and variable resistors |
| 06/19/1991 | EP0432775A2 Switched-loop 180 degrees phase bit device with aperture shutter capabilities |
| 06/19/1991 | EP0432729A2 Radio frequency signal combining/sorting apparatus |
| 06/18/1991 | US5025235 Microstripline interdigital planar filter |
| 06/18/1991 | US5023993 Method for manufacturing a high-performance package for monolithic microwave integrated circuits |
| 06/13/1991 | DE3940252A1 Nuclear resonance device - uses 2 cascaded directional couplers for transmitter-receiver decoupling, full transmission power and undamped received signal transfer |
| 06/12/1991 | EP0432047A1 Wideband microwave window with miniaturized dimensions for electron tubes |
| 06/12/1991 | EP0431234A1 Band-pass speedy tunable filter of the combline-type |
| 06/12/1991 | CN1012864B Reflection-free termination of tem waveguide |
| 06/11/1991 | US5023866 Duplexer filter having harmonic rejection to control flyback |
| 06/11/1991 | US5023580 Surface-mount filter |
| 06/11/1991 | US5023579 Integrated bandpass/lowpass filter |
| 06/11/1991 | US5023575 Coaxial antenna selector matrix |
| 06/11/1991 | US5023573 Compact frequency selective limiter configuration |
| 06/11/1991 | US5023494 High isolation passive switch |
| 06/11/1991 | CA1284838C Antenna exciter for at least two different frequency bands |
| 06/05/1991 | EP0430136A1 Band elimination filter for microwave waveguide |
| 06/05/1991 | EP0299968B1 Device for setting the rotor of a rotary switch |
| 06/05/1991 | CN1012779B Surface mount filter with integral transmission line connection |
| 06/04/1991 | US5021757 Band pass filter |
| 05/31/1991 | CA2031076A1 Micro-wage guide band-stop filter |
| 05/29/1991 | EP0429261A2 Apparatus for communicating between electronic systems |
| 05/29/1991 | EP0429088A1 Lithium-titanium-zinc ferrites for microwave applications |
| 05/29/1991 | EP0429067A2 Band-pass filter using microstrip lines. |
| 05/29/1991 | EP0429042A1 A microstrip line having a changed effective line length and a method of manufacturing same |
| 05/29/1991 | DE3938726A1 Phase rotator for waveguides in GHz range - has two varactors on substrate secured in waveguide cross=sectional plane |
| 05/28/1991 | US5020149 Integrated down converter and interdigital filter apparatus and method for construction thereof |
| 05/28/1991 | US5019792 Signal tracking electronically tunable filter |
| 05/23/1991 | DE3938238A1 Attenuating absorber for electromagnetic waves - has stretched conductor mounted parallel to surface which reflects EM waves on electrically insulated substrate |
| 05/22/1991 | EP0428118A2 Right-Angle junction for rectangular waveguides |
| 05/22/1991 | EP0313650A4 Microwave absorber attenuator for linear sspa power control |
| 05/21/1991 | US5018174 High speed communication apparatus for computerized axial tomography (CAT) scanners |
| 05/21/1991 | US5017938 UHF-TV broadcast system having circular, non-coaxial waveguide transmission line for operation in the TE11 mode |
| 05/21/1991 | US5017897 Split ring resonator bandpass filter with differential output |
| 05/21/1991 | US5017894 Lumped constant non-reciprocal circuit element |
| 05/21/1991 | CA2021613A1 High speed communication apparatus for computerized axial tomography )cat) scanners |
| 05/15/1991 | EP0426855A1 Converter of higher-order wave of a round waveguide into a mirror-type transmission line wave |
| 05/14/1991 | US5015976 Microwave filter |
| 05/14/1991 | US5015974 Isolating circuit and dielectric filter for use therein |
| 05/14/1991 | US5015973 Duplexer with an isolating circuit on a dielectric plate |
| 05/14/1991 | US5015965 Predistortion equalizer with resistive combiners and dividers |
| 05/14/1991 | US5015914 Couplers for extracting RF power from a gyrotron cavity directly into fundamental mode waveguide |
| 05/07/1991 | US5014024 Bandpass filter and method of trimming response characteristics thereof |
| 05/07/1991 | US5014022 Switched-loop/180 degree phase bit with aperture shutter capabilities |
| 05/07/1991 | US5014021 Frequency linearization circuit for a microwave VCO in ridged waveguide |
| 05/07/1991 | US5014018 Nonlinear transmission line for generation of picosecond electrical transients |
| 05/07/1991 | US5013997 Liquid cooled, high power, ferrite phase shifter for phased array antennas |
| 05/02/1991 | EP0424977A2 A method of treating particles for use in the manufacture of electromagnetic shielding material |
| 05/02/1991 | EP0424536A1 Film resistor terminator for microstrip line |
| 05/02/1991 | DE3935785A1 Tuner for waveguide component - has intruding pin which is held by diaphragm so clamped that it bends axially w.r.t. pin |
| 05/01/1991 | CA2001951A1 Temperature-compensated tuning screw for cavity filters |
| 04/30/1991 | US5012292 Device for setting the rotor of a rotary switch |
| 04/30/1991 | US5012211 Low-loss wide-band microwave filter |
| 04/30/1991 | US5012210 Comb-line band-pass filters in the microwave field |
| 04/30/1991 | CA1283680C Microwave c-switches and s-switches |
| 04/24/1991 | EP0424221A1 Broadband power microwave window |
| 04/24/1991 | EP0424113A2 High isolation passive switch |
| 04/24/1991 | EP0423667A1 Microwave band filter of the comb-line type |
| 04/24/1991 | EP0423442A1 Hybrid GaAs MMIC FET-PIN diode switch |
| 04/23/1991 | US5010348 Device for exciting a waveguide with circular polarization from a plane antenna |
| 04/23/1991 | US5010309 Ceramic block filter with co-fired coupling pins |
| 04/23/1991 | CA1283448C Device for measuring the characteristics of a microwave component |
| 04/16/1991 | US5008956 Interdigital local oscillator filter apparatus |
| 04/16/1991 | US5008640 Dielectric-loaded cavity resonator |
| 04/16/1991 | CA1283186C Systeme de liaison a joint pour elements travaillant en hyperfrequence |
| 04/10/1991 | EP0421036A1 Device for adding R.F. signals |
| 04/09/1991 | US5006823 Microwave phase shifter with 0 or π phase shift |
| 04/09/1991 | CA1282881C Microwave multiplexer with multimode filter |
| 04/03/1991 | EP0420106A1 Attenuator using a dual gate field effect transistor |
| 04/03/1991 | EP0419892A2 Microwave polarisation filter |
| 04/02/1991 | US5004993 Constricted split block waveguide low pass filter with printed circuit filter substrate |
| 04/02/1991 | US5004992 Multi-resonator ceramic filter and method for tuning and adjusting the resonators thereof |
| 04/02/1991 | US5004990 Microwave load in small-length oversized waveguide form |
| 04/02/1991 | US5003687 Overmoded waveguide elbow and fabrication process |
| 04/02/1991 | CA1282468C Low noise magnetically tuned resonant circuit |
| 03/27/1991 | EP0419078A1 Transmission lines |
| 03/27/1991 | EP0418630A2 E-plane corner for a rectangular wave guide |
| 03/27/1991 | CA2026129A1 Two-gate field effect transistor attenuator |
| 03/21/1991 | WO1991003845A1 Filter |
| 03/21/1991 | WO1991003820A1 Transmission lines |
| 03/20/1991 | EP0417668A2 Signal termination circuit |
| 03/20/1991 | EP0417356A1 Dual frequency microwave feed assembly |
| 03/20/1991 | CN1012118B Dual mode waveguide filter |
| 03/19/1991 | US5001524 Digitally controlled field effect attenuator devices |
| 03/19/1991 | US5001491 Electronic scanning system for antenna |
| 03/19/1991 | US5001444 Two-frequency radiating device |
| 03/19/1991 | CA1281821C Modular contiguous channel multiplexer |
| 03/14/1991 | DE3929362A1 Filter Filter |
| 03/13/1991 | EP0416080A1 Improvements in antenna polarizers |
| 03/12/1991 | US4999597 Bifilar planar inductor |
| 03/12/1991 | US4999596 Second-harmonic-wave chocking filter |
| 03/12/1991 | US4999591 Circular TM01 to TE11 waveguide mode converter |
| 03/07/1991 | DE3920937C1 Microwave signal generating circuitry - provides two signal components from circular polarised microwave signal in hybrid and supplied to separation filter |
| 03/06/1991 | EP0415558A2 Bandpass filter and method of trimming response characteristics thereof |