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