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