Patents
Patents for H01Q 19 - Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic (10,176)
12/1994
12/28/1994EP0631342A1 Antenna mirror scanner with constant polarization characteristics
12/20/1994US5374939 Radiation gathering and focusing apparatus
12/08/1994WO1994028595A1 Antennas for use in portable communications devices
12/07/1994EP0627783A1 Radiating multi-layer structure with variable directivity
12/01/1994DE4311111A1 Antenna system having a main reflector and a subreflector
11/1994
11/30/1994EP0626736A1 Omnidirectional radio frequency antenna and its application in a radar transponder
11/23/1994CN2183614Y Omnibearing revolving television antenna
11/23/1994CN1026741C Ball-surface multi-satellite TV. receiving antenna
11/15/1994US5365246 Transmitting and/or receiving arrangement for portable appliances
11/15/1994US5365245 Hybrid orthogonal transverse electromagnetic fed reflector antenna
11/15/1994US5365243 Planar waveguide for integrated transmitter and receiver circuits
11/10/1994WO1994026001A1 Steerable antenna systems
11/10/1994DE4313395A1 Planar antenna
11/09/1994EP0623247A1 Dielectric material for antennas
11/03/1994DE4414510A1 Source having radiation on the rear side for a reflector antenna
11/01/1994US5360973 Millimeter wave beam deflector
10/1994
10/25/1994US5359336 Circularly polarized wave generator and circularly polarized wave receiving antenna
10/19/1994CN1093812A Radar apparatus
09/1994
09/29/1994WO1994022180A1 Stacked biconical omnidirectional antenna
09/28/1994EP0484454B1 Transmitting and receiving arrangement for portable appliances
09/28/1994CN2178389Y Half ball paraboloid U.V compatible full frenquency channel steering antenna
09/27/1994US5351061 Antenna with parabolic reflector
09/21/1994EP0616385A1 High-gain, waveguide-fed antenna having controllable higher order mode phasing
09/21/1994CN2178000Y Foldable satellite receiving antenna
09/17/1994CA2119068A1 High-gain, waveguide-fed antenna having controllable higher order mode phasing
09/07/1994CN2176606Y Suspension satellite antenna for communication
09/06/1994US5345248 Staggered helical array antenna
09/01/1994WO1994019842A1 Antenna system
08/1994
08/30/1994EP0647359A4 Asr system for microburst detection.
08/23/1994US5341150 Low sidelobe reflector
08/18/1994WO1994018720A1 Radar antenna
08/18/1994WO1994018719A1 Directional antenna, in particular a dipole antenna
08/10/1994CN2173995Y Three-dimensional V/U compatible combined element rotating antenna
08/04/1994WO1994017566A1 Radar apparatus
08/02/1994CA2011475C Low cross-polarization radiator of circularly polarized radiation
07/1994
07/27/1994CN2172916Y 平板卫星接收天线 Flat-panel satellite receiving antenna
07/21/1994WO1994016472A1 Helical antenna system
07/19/1994CA2027183C Electronic scanning transmitting antenna
07/13/1994CN1089397A Antenna system with helical feeders
07/13/1994CN1025468C Square or rectangular plate like multi-focal point receiving antenna for satellite television
06/1994
06/29/1994EP0603690A1 A shaped dual reflector antenna system for generating a plurality of beam coverages
06/29/1994CN2170585Y Short high-performance backfire antenna
06/15/1994EP0601576A1 Antenna system for mobile communication
06/15/1994CN2169214Y Small diameter satellite TV antenna
06/14/1994US5321414 Dual polarization dipole array antenna
06/14/1994US5321413 Offset active antenna having two reflectors
06/01/1994DE4239785A1 Strip conductor group antenna - has flat conductive arrangement with stepped surface area variation which varies antenna band width
05/1994
05/31/1994US5317328 Horn reflector antenna with absorber lined conical feed
05/31/1994CA2005364C Embedded surface wave antenna
05/26/1994WO1994011921A1 Antenna
05/18/1994EP0597318A2 Multibeam antenna for receiving satellite
05/18/1994CN2165535Y Household self-stress spoke net paraboloid antenna
05/17/1994US5313220 Low noise integrated MMDS antenna and down converter
05/04/1994CN2164119Y Plane-type satellite receiving aerial
05/04/1994CN2164118Y Single-offset paraboloid antenna made of high-mdecular composite material
05/03/1994US5309167 Multifocal receiving antenna with a single aiming direction for several satellites
04/1994
04/28/1994DE4236021A1 Double reflector antenna for use with satellite - transmits and receives HF signals via satellite and directional earth propagation using main and sub-reflectors
04/27/1994EP0593903A1 Identical surface shaped reflectors in semi-tandem arrangement
04/20/1994EP0538346B1 A phase correcting reflection zone plate for focusing microwaves
04/12/1994CA1328504C Microstrip antenna system with multiple frequency elements
04/05/1994US5300941 Integrated MMDS antenna and down converter
03/1994
03/29/1994US5298911 Serrated-roll edge for microwave antennas
03/23/1994EP0588322A1 Equalized offset fed shaped reflector antenna system and technique for equalizing same
03/22/1994CA1328014C Antenna
03/17/1994DE4302905C1 Directional antenna, pref. symmetrical dipole type - is formed by cutting and/or stamping out sections of reflector wall and bending remaining bridging piece
03/16/1994EP0587247A1 Dielectric resonator antenna with wide bandwidth
03/15/1994US5294939 Electronically reconfigurable antenna
03/08/1994US5293175 Stacked dual dipole MMDS feed
03/08/1994US5293172 Reconfiguration of passive elements in an array antenna for controlling antenna performance
03/08/1994CA2002108C Electronic scanning antenna
03/02/1994EP0584153A1 Radiowave antenna system.
03/02/1994CN2158137Y TV receiving antenna with double-shaft paraboloid
02/1994
02/02/1994CN2155080Y Detatchable domestic satellite tv receiving aerial
02/01/1994US5283591 Fixed-reflector antenna for plural telecommunication beams
02/01/1994CA2026066C Multibeam antenna feed device
01/1994
01/26/1994CN2154540Y Satellite television receiving antenna with automatic snow eliminate and frostbite
01/20/1994WO1994001900A1 Phase correcting zone plate
01/20/1994DE4222966A1 Two band rotory beam antenna for resonance and three times resonance frequency - acts as two times half wave dipole or four times five eighths wavelength radiator
01/20/1994CA2139761A1 Phase correcting zone plate
01/19/1994CN2153865Y Domestic hanging type receiving antenna for satellite television
01/05/1994CN2152308Y Multiple beam satellite television receiving antenna
12/1993
12/23/1993WO1993026059A1 Millimeter wave beam deflector
12/22/1993EP0575211A1 Radiating element of an antenna with wide bandwidth and antenna array comprising such elements
12/22/1993CN2150630Y Satellite television receiving antenna
12/16/1993DE4219582A1 Directive antenna with absorbent region around edge of reflector - has triangular slots or holes leading into absorbent cavity resonator formed by two paraboloids on common axis
12/14/1993US5270726 Rectangular aperture reflector for radar cross section and antenna pattern compact ranges
12/08/1993EP0573319A1 Microwave antenna for transmit-receive systems of vehicles
12/08/1993EP0276282B1 Modular antenna array
12/08/1993CN2149022Y Yagi aerial
11/1993
11/30/1993US5266963 Integrated antenna/mixer for the microwave and millimetric wavebands
11/30/1993US5266962 Method of converting transverse electrical modes and a helically outlined aperture antenna for implementing the method
11/23/1993US5264861 Circular polarization antenna
11/23/1993US5264859 Electronically scanned antenna for collision avoidance radar
11/18/1993EP0569390A1 Antenna system.
11/18/1993EP0549718A4 Apparatus and methods for simulating electromagnetic environments
11/10/1993EP0401252B1 Microstrip antenna
11/10/1993EP0294413B1 Steerable beam antenna system using butler matrix
11/10/1993CN1078332A Parabolic antenna system capable of receiving multiple satellite signals
11/09/1993US5260713 Microwave signal receiving apparatus
11/04/1993DE4312693A1 Double reflector antenna with concave surfaces on both main and auxiliary reflectors - reflects two beam bundles onto beam outlet aperture with dimensions equal to area of bundle overlap
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