Patents for H01Q 3 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system (21,949) |
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06/30/1992 | US5126869 Two-dimensional, phased-array optical beam steerer |
06/23/1992 | US5125108 Interference cancellation system for interference signals received with differing phases |
06/23/1992 | US5125051 Wavelength-coded binary fiberoptic delay line apparatus for time steering of array antennas |
06/23/1992 | US5124712 Method of forming the radiation pattern of a high efficiency active antenna for an electronically-scanned radar, and an antenna implementing the method |
06/23/1992 | US5124711 Device for auto-adaptive direction and polarization filtering of radio waves received on a network of aerials coupled to a receiver |
06/17/1992 | EP0490734A1 Method and device for the automatic adjustment of a reflective surface |
06/17/1992 | CN2107721U Ultra high frequency wide band antenna |
06/17/1992 | CN2107720U Co-linear romote steering tv amplifying antenna |
06/17/1992 | CN2107719U Box-shaped phase-control array feeding mechanism with radio-frequency energy |
06/16/1992 | US5122806 Method for finding defective active array modules using an FFT over phase states |
06/10/1992 | EP0489245A2 Improvements in or relating to phased arrays |
06/10/1992 | EP0277984B1 Beam-forming network |
06/10/1992 | CN2107069U Receiving angle-adjustable satellite antenna |
06/09/1992 | US5121401 Pulsed modulators utilizing transmission lines |
06/03/1992 | EP0488101A1 Reconfigurable multibeam antenna |
06/03/1992 | EP0400001A4 Multipath reduction system |
06/02/1992 | CA1302558C Portable antenna apparatus for satellite communication |
06/02/1992 | CA1302549C Modified multi-channel bragg cell using a phased array structure forthe improvement of overall efficiency |
06/02/1992 | CA1302527C Quasi-optical stripline devices |
05/30/1992 | CA2056774A1 Reconfigurable transmission antenna |
05/27/1992 | EP0487464A2 Radar detector for vehicle suitable in close range applications |
05/26/1992 | US5117503 Directional antenna arrangement method for simulcast broadcasting |
05/26/1992 | US5117239 Reversible time delay beamforming optical architecture for phased-array antennas |
05/26/1992 | US5117238 Superresolution beamformer for large order phased array system |
05/26/1992 | US5117237 Quasi-optical stripline devices |
05/19/1992 | US5115248 Multibeam antenna feed device |
05/19/1992 | CA1301311C Plural level beam-forming network |
05/19/1992 | CA1301265C Waveguide matrix including in-plane crossover |
05/05/1992 | US5111208 Calibration of plural - channel system |
04/28/1992 | US5109349 Actively controlled segmented mirror |
04/23/1992 | DE4032832A1 Beam controlled phased antenna - has phase of antenna elements controlled by primary wave from primary beam system |
04/21/1992 | US5107273 Adaptive steerable null antenna processor with null indicator |
04/15/1992 | EP0480157A1 Angle diversity antenna with phased array feed |
04/14/1992 | US5105200 Superconducting antenna system |
04/14/1992 | US5105170 Waveguide coupling networks |
04/09/1992 | DE4131861A1 Frame for axisymmetric radiator of electromagnetic waves - has hemispherical carrier and main support of equal dia. rotated by rack=and=pinion drives |
04/09/1992 | DE4031856A1 Windproof support frame for offset paraboloidal reflector antenna - rotates on oblique axis between azimuthal vertical and direction of waves reflected from surface of paraboloid |
04/08/1992 | CN2101328U High accuracy antenna servo control apparatus |
04/07/1992 | US5103495 Partitioned optical delay line architecture for time steering of large 1-D array antennas |
04/07/1992 | US5103232 Phase quantization error decorrelator for phased array antenna |
04/07/1992 | CA1298651C Electronic scanning antenna |
04/07/1992 | CA1298650C Transmit mode electronic reconfiguration antenna |
04/02/1992 | WO1992005601A1 Apparatus and methods for simulating electromagnetic environments |
04/02/1992 | DE4131590A1 Aligner for receiver directional aerial onto signal transmitter - uses directional aerial directional diagram width control and compensation mixer |
04/01/1992 | EP0477434A1 Analysis of biological signals using data from arrays of sensors |
04/01/1992 | EP0300024B1 Slot antenna in circular waveguide |
04/01/1992 | CN2100691U Infrared remote-control directional tv aerial |
03/31/1992 | US5101455 Recirculating binary fiberoptic delay line apparatus for time steering |
03/31/1992 | CA1298402C Tracking system with beam switching antenna |
03/25/1992 | CN2100033U Infrared telecontrol fully automatic preselective television aerial |
03/24/1992 | US5099254 Modular transmitter and antenna array system |
03/24/1992 | US5099253 Constant beamwidth scanning array |
03/24/1992 | US5099247 Electronic steering of pattern of an antenna system |
03/24/1992 | US5099242 Novel shielding, reflection and scattering control using chiral materials |
03/24/1992 | CA1297971C Multifunction active array |
03/18/1992 | EP0474977A2 Improvements in or relating to radar systems |
03/18/1992 | CN1059621A High-efficiency feeding source of paraboloid antenna |
03/17/1992 | US5097267 Pilotless aircraft |
03/11/1992 | EP0294465B1 Fiber-optic feed network using series/parallel connected light emitting opto-electronic components |
03/11/1992 | CN2098761U Multifunctional switch for turning antenna of tv |
03/04/1992 | EP0473497A1 Antenna device for radiation and reception of high-frequency waves |
03/04/1992 | EP0472636A1 Antenna apparatus with reflector or lens consisting of a frequency scanned grating |
03/04/1992 | CN2098094U All-frequency channel antenna in room |
03/04/1992 | CN2098093U Two-direction folding fan all-frequency channel antenna for tv |
03/03/1992 | USH1034 Millimeter wave tracking radar antenna with variable azimuth pattern |
03/03/1992 | US5093747 Method for providing beam steering in a subaperture-addressed optical beam steerer |
03/03/1992 | US5093740 Optical beam steerer having subaperture addressing |
03/03/1992 | US5093668 Multiple-beam array antenna |
03/03/1992 | US5093667 T/R module with error correction |
03/03/1992 | US5093649 Bessel beam radar system using sequential spatial modulation |
02/26/1992 | EP0472404A2 Liquid crystal-based composite material having enhanced microwave birefringence |
02/26/1992 | EP0472403A2 Microwave phase modulation with liquid crystals |
02/26/1992 | CN2097449U Satellite tv receiving umbrella antenna |
02/25/1992 | US5091733 Antenna pointing device |
02/25/1992 | US5091730 Pulse radar and components therefor |
02/25/1992 | US5090823 Pedestal with tilting bearing race |
02/25/1992 | CA1296420C Rotator |
02/19/1992 | EP0471226A2 Optoelectronic wide bandwidth photonic beamsteering phased array |
02/18/1992 | US5089825 Method of, and apparatus for controlling an antenna device |
02/18/1992 | US5089824 Antenna apparatus and attitude control method |
02/18/1992 | CA1296098C Phased array antenna with couplers in spatial filter arrangement |
02/13/1992 | DE4025241A1 Microwave reception device with antenna dish - has function control data signals fed to antenna dish via antenna cable |
02/12/1992 | CN2096135U Remote control direction finding equipment for antenna |
02/11/1992 | US5087917 Radar system |
02/11/1992 | CA1295731C Steerable beam antenna system using butler matrix |
02/04/1992 | US5086302 Fault isolation in a Butler matrix fed circular phased array antenna |
02/04/1992 | US5086301 Polarization converter application for accessing linearly polarized satellites with single- or dual-circularly polarized earth station antennas |
02/04/1992 | CA1295417C Phase control reflector element |
01/30/1992 | DE4024090A1 Transmit and/or reception aerial for portable telecommunication appts. - is integrated in appts. and has several elements switchable by appts. switchgear |
01/29/1992 | EP0468662A2 Plural frequency matrix multiplexer |
01/29/1992 | EP0468623A1 A layered frequency selective surface assembly and method of modulating the power or frequency characteristics thereof |
01/29/1992 | CN1058299A Receiving mushroom antenna of satellite tv |
01/28/1992 | US5084710 Electronic means for switching antennas to a common bus |
01/28/1992 | US5084708 Pointing control for antenna system with electronic scannning and digital beam forming |
01/28/1992 | US5084707 Antenna system with adjustable beam width and beam orientation |
01/28/1992 | US5084706 Synchronization of very short pulse microwave signals for array applications |
01/22/1992 | CN2094123U Direction-changeable wall tv aerial |
01/21/1992 | US5083131 Local compensation of failed elements of an active antenna array |
01/21/1992 | US5083130 Pulse radar and components therefor |
01/21/1992 | CA1294703C System for mechanically steering an airborne antenna |