Patents for H01P 5 - Coupling devices of the waveguide type (11,303)
01/1991
01/02/1991EP0404905A1 Improved feed waveguide for an array antenna
01/01/1991USH880 In-plane transmission line crossover
12/1990
12/25/1990US4980662 Multiplexed microwave filter, and method of adjusting such a filter
12/18/1990US4978933 Wideband microwave hybrid circuit with in-phase or phase-inverted output signals
12/18/1990CA1278051C Balanced planar transformers
12/04/1990US4975625 Electrodeless lamp which couples to small bulb
12/03/1990WO1990015451A1 Capacitively compensated microstrip directional coupler
12/03/1990CA2053897A1 Capacitively compensated microstrip directional coupler
11/1990
11/27/1990US4973925 Double-ridge waveguide to microstrip coupling
11/27/1990US4973924 Mode converter for microwave power transmission circuit
11/22/1990EP0398419A2 One-octave 90 degrees 3dB directional coupler embodied in microstrip and slotline
11/13/1990US4970477 Microwave adjustment device for a transition between a hollow waveguide and a plane transmission line
11/07/1990EP0396430A2 Radio frequency network
11/06/1990US4968958 Broad bandwidth planar power combiner/divider device
11/05/1990CA2015945A1 Radio frequency network
11/01/1990WO1990013151A1 Generation of a high-frequency field in a useful volume
10/1990
10/30/1990US4967172 Microwave phase shifter circuit
10/30/1990US4967171 Microwave integrated circuit
10/23/1990US4965530 Parallelled amplifier with switched isolation resistors
10/23/1990CA1275459C Directional coupler
10/18/1990DE3912569A1 Verfahren und vorrichtung zur erzeugung eines elektrischen hochfrequenzfeldes in einem nutzraum Method and device for generation of an electrical high-frequency field in a useful space
10/17/1990EP0392999A1 A field-twisting waveguide junction
10/10/1990EP0391596A2 Reduced-height waveguide-to-microstrip transition
10/04/1990DE3933439A1 Wide band, quadrature, hybrid waveguide - has four-gate of four, ring forming, quarter-wavelength conductors with alternating wave resistance
10/03/1990EP0389672A2 Hybrid mode RF phase shifter
10/02/1990US4961061 Phase-shifting combiner for electromagnetic waves
10/02/1990US4961050 Test fixture for microstrip assemblies
09/1990
09/26/1990EP0389025A2 Microwave frequency converter
09/19/1990EP0388377A1 An arrangement for supplying power to a hollow wave-guide intended for electromagnetic microwaves
09/19/1990EP0387955A1 Package for hyperfrequency integrated circuit
09/11/1990US4956622 Waveguide H-plane junctions
09/11/1990US4956621 Three-state, two-output variable RF power divider
09/11/1990US4956614 Device including a radial combiner for electromagnetic waves
09/04/1990US4955079 Waveguide excited enhancement and inherent rejection of interference in a subharmonic mixer
08/1990
08/30/1990DE4006282A1 High speed signal transmission line for IC network - uses microstrip conductor path configuration with capacitance zones on either side of transmission line
08/30/1990DE3928158C1 Junction box branching or combining HF signals - assigns terminals for further coaxial leads to coaxial lead vertically to inner conductor
08/28/1990US4952916 Power transmission
08/28/1990US4952895 Planar airstripline-stripline magic-tee
08/28/1990US4952894 Waveguide feed network for antenna array
08/28/1990US4952892 Wave guide impedance matching method and apparatus
08/28/1990CA1273429A1 Broadbanded microstrip antenna having series- broadbanding capacitance integral with feedline connection
08/22/1990EP0383311A2 Microwave power amplifier using phase inverters
08/22/1990EP0383292A2 Electronic circuit device
08/22/1990EP0383287A1 Adaptive phase and amplitude distributor
08/21/1990US4951012 Transformer arrangement to accomplish impedance transformation
08/21/1990US4951011 Impedance matched plug-in package for high speed microwave integrated circuits
08/16/1990EP0382428A2 Test fixture for microstrip assemblies
08/15/1990CN1009233B Microstrip transmission line for coupling to dielectric resonator
08/08/1990EP0381398A2 Automatic impedance adjusting apparatus for microwave load and automatic impedance adjusting method therefor
08/07/1990US4947144 Distribution device for distributing very high data rate digital signals
08/07/1990US4947143 Multiport power divider-combiner
08/02/1990DE4002678A1 Kreisschlitz-arrayantenne mit abgleichteil Circular slot-array antenna with matching part
08/02/1990DE3902593A1 Arrangement for rotating the polarisation plane of a linearly polarised microwave through 90@
07/1990
07/31/1990US4945321 For dividing an input signal in two signal paths
07/26/1990DE3901669A1 Low-inductance electrical connection between two planar circuits and method for producing a connection of this kind
07/25/1990EP0379202A2 Phase inverter and push-pull amplifier using the same
07/03/1990US4939484 Transmission channel coupler for antenna
06/1990
06/28/1990WO1990007201A1 Improved feed waveguide for an array antenna
06/27/1990EP0374744A2 Microwave integrated circuit
06/26/1990US4937542 Dielectric filter
06/26/1990US4937541 Loaded lange coupler
06/22/1990CA2005182A1 Microwave integrated circuit
06/20/1990EP0373634A2 Waveguide matrix switch
06/12/1990US4933651 Multichannel combiner/divider
05/1990
05/30/1990EP0370891A1 Microwave propagating device for moving webs, especially textile webs
05/29/1990US4929955 Circular waveguide amplitude commutator
05/23/1990CN2057534U Largy power sampling load of adjustable standing-wave ratio waveguide
05/22/1990US4928078 Branch line coupler
05/22/1990US4928077 Tunable microwave coupler with mechanically adjustable conductors
05/17/1990WO1990005388A1 Ceramic filter having integral phase shifting network
05/15/1990US4926189 High-gain single- and dual-polarized antennas employing gridded printed-circuit elements
05/15/1990US4926145 Radial power combiner/divider with mode suppression
05/09/1990EP0367543A2 Overlapped interfaces between coplanar transmission lines which are tolerant to transverse and longitudinal misalignment
05/09/1990EP0367267A2 Scanning tip for electromagnetic radiation
05/09/1990EP0367061A2 Ceramic filter having integral phase shifting network
05/08/1990US4924196 Waveguide matrix switch
05/01/1990US4922325 Multilayer ceramic package with high frequency connections
05/01/1990US4922215 Power divider in waveguide form
04/1990
04/18/1990EP0363841A2 Plural layer coupling system
04/17/1990US4916808 Process for fabricating a sculptured stripling interface conductor
04/12/1990DE3926187A1 Schlitzstrahler Slot radiator
04/10/1990US4916415 Balanced, impedance matched, coupling device
03/1990
03/28/1990EP0360700A1 Magneto-electric probe and method of using same
03/28/1990CN1040890A Slot array antenna
03/14/1990EP0358497A2 Broadbrand microstrip to coplanar waveguide transition by anisotropic etching of gallium arsenide
03/14/1990EP0167574B1 Transition between a continuous and a corrugated circular waveguides for efficient launch of signals in two frequency bands
03/08/1990DE3924426A1 Broadband 3 DB 90 deg. coupler for microwaves - comprises four quarter-wave line lengths making ring connected via half-wave lines to ports
03/07/1990EP0357140A1 Broad bandwidth planar power combiner/divider device
03/07/1990CN1040288A Slot array antenna
03/06/1990US4906956 On-chip tuning for integrated circuit using heat responsive element
03/06/1990US4906954 Directional coupler device
03/06/1990US4906953 Broadband microstrip to coplanar waveguide transition by anisotropic etching of gallium arsenide
03/06/1990US4906952 Asymmetric waveguide load
03/06/1990US4906951 Birefringent corrugated waveguide
03/06/1990US4906945 Millimeter-wave/submillimeter-wave oscillator
02/1990
02/28/1990EP0355979A2 Power amplifying assembly
02/28/1990EP0355898A1 A planar array antenna, comprising coplanar waveguide printed feed lines cooperating with apertures in a ground plane
02/28/1990EP0355338A1 Wide-band information and/or instruction transmitting device between a moving element in a plane and a control station
02/27/1990US4904966 Suspended substrate elliptic rat-race coupler
02/20/1990US4902991 Radio frequency signal combining/sorting device