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)
05/1993
05/05/1993EP0540249A1 Processing method for antenna patterns
05/05/1993EP0540125A1 Satellite antenna system
05/05/1993EP0540124A1 Satellite antenna system
04/1993
04/29/1993WO1993008647A1 Aerial reception process
04/28/1993EP0539297A1 Device with adjustable frequency selective surface
04/27/1993US5206954 Satellite signal receiving apparatus
04/27/1993US5206655 High-yield active printed-circuit antenna system for frequency-hopping space radar
04/27/1993US5206613 Measuring the ability of electroptic materials to phase shaft RF energy
04/22/1993DE4134415A1 Antennenempfangsverfahren Antenna reception method
04/20/1993US5204686 RF Feed array
04/15/1993WO1993007509A1 Radar target with delayed reply means
04/14/1993CN2129982Y Remote control adjusting direction tv receiving antenna
04/13/1993US5202776 Time delay beam formation
04/13/1993US5202697 Low-profile steerable cardioid antenna
04/08/1993DE4203376C1 Beaming antenna with adjustable response from switchable lobe patterns - has additional search reflector of smaller dia. assigned to exciter
04/07/1993EP0535374A1 Radar device with an azimuthal rotating antenna system
04/06/1993US5201072 Tuner for diversity reception having a fixed antenna and a retractive antenna
03/1993
03/31/1993EP0534862A1 An electronic scanning antenna
03/31/1993EP0534617A1 Method for reducing side lobes in antenna patterns
03/30/1993US5198827 Dual reflector scanning antenna system
03/30/1993US5198821 Method and device for the on-line testing of a multiple-source antenna
03/27/1993CA2079193A1 Electronic sweep antenna
03/23/1993US5196774 Digital servo system
03/17/1993EP0531979A1 Mobile object discriminating system
03/17/1993EP0531877A1 FM radar system
03/17/1993EP0315689B1 Deterministic thinned aperture phased antenna array
03/16/1993US5194874 Satellite antenna tracking system
03/16/1993US5194873 Antenna system providing a spherical radiation pattern
03/16/1993CA1314628C Deterministic thinned aperture high gain phased array
03/16/1993CA1314609C Distributed-array radar system comprising an array of interconnected elementary satellites
03/02/1993US5191349 Apparatus and method for an amplitude monopulse directional antenna
03/02/1993US5191339 Phased-array antenna controller
02/1993
02/23/1993US5189433 Slotted microstrip electronic scan antenna
02/18/1993DE4126632A1 Directional reflector aerial for reception of communications satellite - has specified prediction angle for reduction of declination adjustment
02/16/1993US5187487 Compact wide tunable bandwidth phased array antenna controller
02/16/1993US5187486 Method of and apparatus for automatically calibrating a phased-array antenna
02/10/1993CN2126936Y 卧式天线 Horizontal Antenna
02/10/1993CN1068912A Decameter-wave antenna with improved resistance to wind
02/04/1993WO1993002486A1 Multibeam lens antenna
02/04/1993DE4138782C1 Direction finder antenna with adjacent passive dipole elements - has diode switch between input and output of transformer at point where balanced input voltage is zero w.r.t. earth
02/02/1993US5184140 Antenna system
02/02/1993US5184136 Pulse radar and components therefor
01/1993
01/27/1993EP0524878A1 Microwave semiconductor absorber with optical command
01/27/1993EP0524622A1 Antenna array for ultra-high frequencies
01/27/1993CN1068446A Three-purpose arched horizontal sw antenna
01/26/1993US5182562 Forward looking radar
01/21/1993WO1993001663A1 Telecommunications system using directional antennas
01/20/1993EP0524045A1 Antenna for decametric waves with reduced wind load
01/20/1993EP0524001A1 Multi-port microwave coupler
01/20/1993EP0524000A1 Multi-port microwave coupler
01/20/1993EP0523422A1 Directional scanning circular phased array antenna
01/20/1993EP0523409A1 Electronically reconfigurable antenna
01/19/1993CA2073793A1 Multi-port microwave coupler
01/16/1993CA2071715A1 Directional scanning circular phased array antenna
01/16/1993CA2071714A1 Electronically reconfigurable antenna
01/13/1993EP0522310A2 Control apparatus for an FM receiver having plural antennas
01/12/1993US5179386 Cylindrical phased array antenna system to produce wide open coverage of a wide angular sector with high directive gain and strong capability to resolve multiple signals
01/07/1993WO1993000722A1 Flat aerial
01/07/1993EP0521377A2 Microstrip patch antenna structure
01/05/1993US5177486 Optically activated hybrid pulser with patterned radiating element
01/04/1993CA2071325A1 Microstrip patch antenna structure
12/1992
12/30/1992EP0520859A1 Method and device for measuring of wind forces on a rotating system
12/30/1992EP0520564A2 Circularly-polarized antenna and phase shift stripline device for such an antenna
12/30/1992EP0520489A2 Glittering array for radar pulse shaping
12/30/1992EP0520424A2 An antenna apparatus for moving body
12/30/1992CN2126468U Self-varying orientation tv. aerial
12/29/1992US5175878 Radio network with switching arrangement for coupling radios to a selected antenna out of a plurality of antennas
12/29/1992US5175558 Nulling system for constraining pulse jammer duty factors
12/29/1992US5175556 Spacecraft antenna pattern control system
12/29/1992CA1312137C Airborne antenna and a system for mechanically steering an airborne antenna
12/28/1992CA2072388A1 Method and apparatus for measuring wind-related forces on a turning system
12/24/1992DE4120439A1 Flachantenne Flat antenna
12/23/1992WO1992022940A1 Optically fed module for phased-array antennas
12/23/1992EP0519772A1 Microwave antenna with optoelectronical controlled scanning
12/23/1992EP0519170A1 Broadband phase shifter and vector modulator
12/23/1992CN2125879U Deflecting drvice for remoting antenna
12/22/1992US5173790 Adaptive filter with correlation weighting structure
12/22/1992US5173708 Attitude control system for antenna on mobile body
12/22/1992US5173706 Radar processor with range sidelobe reduction following doppler filtering
12/22/1992US5173700 Mainbeam jammer nulling with monopulse angle correction
12/21/1992WO1993000724A1 Active integrated microstrip antenna
12/21/1992CA2089894A1 Active integrated microstrip antenna
12/16/1992EP0517977A1 Pulse radar and components therefor
12/16/1992EP0517976A1 Pulse radar
12/15/1992CA1311529C Null processing receiver apparatus and method
12/09/1992EP0517352A1 A power distribution network for array antennas
12/09/1992CN2124514U Automatic antenna orientation changing arrangement
12/06/1992CA2064345A1 Power distribution network for array antennas
12/01/1992US5168250 Broadband phase shifter and vector modulator
12/01/1992US5167510 Crosspoint switch module and matrix
11/1992
11/26/1992WO1992021162A1 System for maintaining polarization and signal-to-noise levels in received frequency reuse communications
11/25/1992EP0514886A1 Dual reflector scanning antenna system
11/25/1992CN2123129U Orientation-changing means of open aerial for tv sets
11/24/1992US5166857 Electronically tunable capacitor switch
11/24/1992US5166693 Mobile antenna system
11/24/1992US5166690 Array beamformer using unequal power couplers for plural beams
11/24/1992CA2068965A1 Dual reflector scanning antenna system
11/19/1992EP0513856A2 Use of a transmit signal amplifying apparatus, transmit subsystem and method for amplifying transmit signals
11/17/1992US5165057 Radio receiver antenna systems resistant to multiple path propagation fading
11/17/1992US5164736 Optical antenna beam steering using digital phase shifter control