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)
10/1993
10/27/1993CN2144870Y High property special shape aerial
10/06/1993EP0564266A2 Circular polarization apparatus for micro wave antenna
09/1993
09/30/1993WO1993019497A1 Fresnel-lens reflecting antenna for microwave frequency use
09/29/1993EP0562355A2 Antenna for radar surveillance
09/28/1993US5248987 Widebeam antenna
09/28/1993US5247843 Apparatus and methods for simulating electromagnetic environments
09/23/1993DE4307009A1 Multi-beam antenna device for radar system of e.g. automobile - has offset antenna supported by common holder with radar modules each having integral prim. radiator
09/22/1993EP0561675A1 Receiving antenna with a single pointing direction for reception from several satellites of different orbiting positions
09/21/1993US5247312 Wire carrier clip for dish antenna
09/18/1993CA2091730A1 Receiving antenna with single aiming direction for several satellites having different orbital positions
09/16/1993DE4208101A1 Satellite aerial with parabolic dish - has surface covered with solar cell elements maintaining charge of battery supplying receiver circuit.
09/14/1993US5245349 Flat-plate patch antenna
09/07/1993US5243358 Directional scanning circular phased array antenna
09/07/1993US5243357 Waveguide feeding array antenna
09/07/1993US5243186 Photonic electromagnetic field sensor apparatus
09/07/1993CA1322046C Monopole/l-shaped parasitic elements for circularly/elliptically polarized wave transceiving
09/01/1993EP0557853A1 Data link antenna system
09/01/1993CN1075828A Multiple satellites television sphese receiving antenna
08/1993
08/25/1993EP0277206B1 Antenna system for hybrid communications satellite
08/25/1993CN2141127Y Layered wide-band plane-plate-type reflecting surface microwave aerial
08/24/1993CA1321640C Antenna device capable of reducing a phase noise
08/17/1993US5237334 Focal plane antenna array for millimeter waves
08/10/1993US5235343 High frequency antenna with a variable directing radiation pattern
08/10/1993CA1321263C Antenna system with adjustable beam width and beam orientation
08/04/1993EP0553094A1 Device for information transmission.
07/1993
07/20/1993US5229783 Field adjustable sectoral antenna
07/20/1993US5229782 Stacked dual dipole MMDS feed
07/15/1993DE4200755A1 Centrally fed, two-reflector, microwave directional antenna - has coaxial, primary horn radiator with toroidal annular aperture with parallel polarised field
07/08/1993WO1993013570A1 Widebeam antenna
07/07/1993EP0549718A1 Apparatus and methods for simulating electromagnetic environments
06/1993
06/30/1993EP0548876A1 An active offset antenna having two reflectors
06/24/1993DE4223138A1 Double reflector radar antenna with variable directional characteristic - has movable metal or metallised element within radiation field of main reflector or pivoted edge around main reflector
06/16/1993EP0546913A1 Antenna with fixed reflector for plural beams of communication systems
06/15/1993US5220335 Planar microstrip Yagi antenna array
06/03/1993DE4139102A1 Reflective antenna system with correction of comatic lobe - has secondary excitation stage providing phases shift to suppress comatic lobe
06/02/1993CN2135197Y Satellite receiving aerial
05/1993
05/27/1993WO1993010572A1 Dielectric material for antennas
05/27/1993DE4138424A1 Receiver for directional HF and UHF radiation fields - has high conductivity quasi-surface element for specified reception and transmission frequency
05/26/1993EP0543664A2 Parabolic antenna and method of manufacturing reflector body of the same
05/26/1993CN2134722Y Small-size satellite television antenna
05/19/1993EP0542447A1 Flat plate antenna
05/19/1993CN2133941Y Small-caliber broad-band antenna
05/12/1993EP0540899A1 UHF Yagi antenna
04/1993
04/27/1993US5206658 Multiple beam antenna system
04/21/1993EP0537337A1 Microwave camera
04/13/1993US5202700 Array fed reflector antenna for transmitting & receiving multiple beams
04/13/1993US5202699 Integrated MMDS antenna and down converter
04/06/1993US5200757 Microwave antennas having both wide elevation beamwidth and a wide azimuth beamwidth over a wide frequency bandwidth
03/1993
03/31/1993EP0534862A1 An electronic scanning antenna
03/30/1993US5198827 Dual reflector scanning antenna system
03/27/1993CA2079193A1 Electronic sweep antenna
03/23/1993CA1314972C Surface of revolution type reflector antenna
03/18/1993DE4130476A1 Directional parabolic reflector radiator with planar excitation - has resonator array formed for phase, and impedance matched waveguides
03/10/1993CN2128017Y U.V. compitable turning TV antenna
02/1993
02/24/1993EP0528175A1 Antenna receiving apparatus
02/24/1993EP0476131A4 Electromagnetic antenna collimator
02/21/1993CA2074571A1 Antenna receiving apparatus
02/18/1993WO1993003508A1 Asr system for microburst detection
02/17/1993EP0527714A1 Cavity Antenna
02/17/1993EP0527569A1 Microwave antenna
02/16/1993US5187491 Low sidelobes antenna
02/10/1993EP0526457A1 Antenna
02/10/1993CN2126937Y Satellite tv. receiving antenna
02/10/1993CN2126936Y 卧式天线 Horizontal Antenna
02/10/1993CN1068912A Decameter-wave antenna with improved resistance to wind
02/09/1993US5185613 Hybrid structures
02/09/1993US5185586 Method and apparatus for digital synthesis of microwaves
02/02/1993US5184144 Ogival cross-section combined microwave waveguide for reflector antenna feed and spar support therefor
02/02/1993CA1313408C Wide band antenna for mobile communications
01/1993
01/28/1993DE4123997A1 Trapezoidal directional radiator for duo-band operation in VHF-UHF range - feeds in lambda 5/8 shanks of trapezium via non-radiating lambda/8 circuits in low-ohmic, identical phase manner
01/27/1993CN1068447A Multiple-focus satellite tv receiving plate antenna
01/26/1993US5182569 Antenna having a circularly symmetrical reflector
01/20/1993EP0524045A1 Antenna for decametric waves with reduced wind load
01/20/1993EP0523422A1 Directional scanning circular phased array antenna
01/20/1993EP0523409A1 Electronically reconfigurable antenna
01/16/1993CA2071715A1 Directional scanning circular phased array antenna
01/16/1993CA2071714A1 Electronically reconfigurable antenna
01/05/1993US5177496 Flat slot array antenna for te mode wave
12/1992
12/29/1992US5175562 High aperture-efficient, wide-angle scanning offset reflector antenna
12/29/1992US5175559 Combined Radar/ESM antenna system and method
12/29/1992CA1312138C Multimode-dielectric-loaded multi-flare antenna
12/23/1992EP0519855A1 Compact active antenna for weather satellite
12/22/1992US5173714 Slot array antenna
12/17/1992DE4119784A1 Planar waveguide structure for integrated transceiver circuits - has semiconductor substrate rear as surface for incoming and-or radiation signals
12/16/1992EP0518663A2 Primary horn for parabolic-reflector antenna
12/16/1992EP0517976A1 Pulse radar
12/09/1992CN2124515U Domestic satellite receiving plastic antenna
11/1992
11/26/1992WO1992021159A1 Radiowave antenna system
11/26/1992DE4116887A1 Offset paraboloidal reflector antenna with reduced wind loading - is esp. suited to mounting on slope of roof for reception of signals from broadcasting satellite
11/25/1992EP0514886A1 Dual reflector scanning antenna system
11/24/1992US5166698 Electromagnetic antenna collimator
11/24/1992CA2068965A1 Dual reflector scanning antenna system
11/12/1992WO1992019986A1 Microwave camera
11/11/1992EP0512876A1 Circular polarized antenna
11/10/1992US5162806 Planar antenna with lens for controlling beam widths from two portions thereof at different frequencies
11/04/1992CN2121082U C-wave band satellile tv. antenna of anti-microwave interference
11/03/1992US5160937 Method of producing a dual reflector antenna system
10/1992
10/28/1992EP0510588A1 Device for compensating cross-polarized components in an antenna with a curved reflector and off-set primary feed
10/28/1992CN2120390U Satellite receiving antenna for television capable of using as solar furnace
10/27/1992US5159486 Beam steering apparatus