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)
11/1982
11/16/1982CA1135548A1 Wide scan quasi-optical frequency diplexer
11/09/1982US4358771 Power distribution type antenna
11/02/1982US4357612 Multimode ultrahigh-frequency source and antenna
10/1982
10/26/1982US4356494 Dual reflector antenna
10/19/1982US4355317 Dish antenna and method for making
10/19/1982US4355316 Offset J-hook reflector antenna
10/19/1982US4355314 Wide-field-of-view antenna arrangement
10/06/1982EP0061965A1 Antenna with a device for controlling the linear-polarization direction
10/05/1982US4353073 Antenna arrangement for a radar surveillance method for target locating with altitude acquisition
09/1982
09/28/1982US4352111 Multi-band antenna coupling network
09/28/1982US4352108 Antenna beam shaping structure employing dipoles arrayed on a parabolic surface
09/15/1982EP0059927A1 Microwave receiving arrangement
09/14/1982US4349827 Parabolic antenna with horn feed array
09/07/1982CA1131351A1 Radio frequency energy antenna
08/1982
08/31/1982US4347517 Microstrip backfire antenna
08/25/1982EP0058215A1 Antenna for the reception of circularly polarized electromagnetic waves radiated from a broadcasting satellite
08/17/1982US4345257 Primary radar antenna having a secondary radar (IFF) antenna integrated therewith
08/11/1982EP0057538A2 Antenna device
08/04/1982EP0057121A2 High-frequency dual-band feeder and antenna incorporating the same
08/04/1982EP0056985A2 Device to improve the decoupling of antennae
08/03/1982US4343005 Microwave antenna system having enhanced band width and reduced cross-polarization
08/03/1982US4343004 Broadband astigmatic feed arrangement for an antenna
08/03/1982US4343003 Directional antenna for microwave transmissions
08/03/1982US4343002 Paraboloidal reflector spatial filter
07/1982
07/28/1982EP0056406A1 Parabolic reflector and method of making the same
07/27/1982US4342035 Frequency compensating reflector antenna
07/13/1982US4339757 Broadband astigmatic feed arrangement for an antenna
07/07/1982EP0055591A1 Jemcy conical receiving antenna
07/06/1982US4338608 Triple-beam offset paraboloidal antenna
06/1982
06/24/1982WO1982002120A1 Reflector antenna
06/24/1982WO1982002119A1 Directional antenna with a plurality of elements
06/22/1982US4336543 Electronically scanned aircraft antenna system having a linear array of yagi elements
06/22/1982CA1126398A1 Scanable antenna arrangements capable of producing a large image of a small array with minimal aberrations
06/15/1982US4335387 Radar antenna with rotating linear polarization designed to reduce jamming
06/09/1982EP0053181A1 External microwave applicator and method
06/01/1982US4333082 Inhomogeneous dielectric dome antenna
06/01/1982US4332260 External microwave applicator and method
05/1982
05/11/1982US4329692 Primary radar antenna having a secondary radar antenna integrated therewith
05/04/1982US4328500 Integrated antenna array for radar equipment enabling the simultaneous generation of two or more different radiation patterns
04/1982
04/06/1982US4323901 Monolithic, voltage controlled, phased array
04/06/1982CA1121509A1 Antenna for use with a range-gated, pulse doppler radar system
03/1982
03/10/1982EP0046996A1 Antenna systems
03/09/1982US4319250 Offset dual-reflector aerial having tapered reflector segments in main reflector
03/02/1982US4318108 Bidirectionally focusing antenna
03/02/1982US4318103 Compact radar detector and range extender
03/02/1982CA1119292A1 Parabolic reflector antenna with optimal radiative characteristics
02/1982
02/18/1982WO1982000545A1 Parabolic reflector and method of making the same
02/16/1982US4316194 Hemispherical coverage microstrip antenna
02/10/1982EP0045682A1 Antenna feed for a transmitting-receiving antenna
02/02/1982US4314254 Insulator for foldable elements of dipole TV antennas
02/02/1982US4314253 Portable folding microwave antenna
01/1982
01/19/1982US4312002 Combined radar and infrared scanning antenna
01/13/1982EP0043689A2 Beam waveguide feed for antenna
01/13/1982EP0043591A1 Antenna
01/05/1982US4309710 Multi-lobe antenna having a disc-shaped Luneberg lens
12/1981
12/24/1981WO1981003617A1 External microwave applicator and method
12/22/1981US4307403 Aperture antenna having the improved cross-polarization performance
12/15/1981US4306235 Multiple frequency microwave antenna
12/08/1981US4305075 Conically scanning antenna system for tracking radars
11/1981
11/17/1981US4301457 Antenna employing curved parasitic end-fire directors
11/17/1981US4301456 Electromagnetic wave attenuating surface
11/03/1981US4298877 Offset-fed multi-beam tracking antenna system utilizing especially shaped reflector surfaces
11/03/1981US4298876 Polarizer for microwave antenna
10/1981
10/27/1981US4297710 Parallel-plane antenna with rotation of polarization
10/27/1981US4297709 Luneberg lens antenna
09/1981
09/16/1981EP0035929A1 High frequency multimode feed, and antenna comprising such a feed
09/15/1981US4290071 Multi-band directional antenna
09/02/1981EP0034810A1 Directional microwave antenna to realize a sector-shaped lobe
09/02/1981EP0034809A1 Directional microwave antenna having a sector-shaped lobe
09/01/1981US4287519 Multi-mode Luneberg lens antenna
08/1981
08/18/1981US4284992 Wide scan quasi-optical frequency diplexer
08/18/1981US4284991 Common antenna for primary and secondary radar system
08/11/1981US4283728 Five-horn cassegrain antenna
08/04/1981US4282530 Cylindrical paraboloid weather cover for a horn reflector antenna with wave absorbing means
08/04/1981CA1106476A1 Airport surface detection equipment (asde)
07/1981
07/21/1981CA1105613A1 Antenna beam shaping structure
07/21/1981CA1105611A1 Yagi-type antennas and method
07/15/1981EP0032081A1 Directable-beam antenna for communication satellite
07/07/1981CA1104712A1 Broadband shaped beam antenna
06/1981
06/30/1981CA1104238A1 Monopulse radar apparatus
06/24/1981EP0030895A1 Method of correcting the cross-defocusing of a paraboloid and matching device for correcting a parabolic antenna
06/17/1981EP0030272A1 Cassegrain antenna
06/16/1981US4274098 Loss-free scanning antenna
06/09/1981US4272770 Reflector antennae apparatus for limiting aperture blockage
06/09/1981US4272769 Microwave antenna with parabolic main reflector
06/02/1981US4271534 Microwave receiver
06/02/1981US4271413 Null mask
05/1981
05/26/1981US4270129 Apparatus and method for realizing preselected free space antenna patterns
05/20/1981EP0028836A1 Antenna arrangement for an omnidirectional search radar for target location with height detection
05/19/1981US4268833 Broadband shaped beam antenna employing a cavity backed spiral radiator
05/06/1981EP0028018A1 An improved phased array antenna system
05/05/1981US4266203 Microwave polarization transformer
05/05/1981CA1100625A1 Plane wave lens
04/1981
04/21/1981US4263599 Parabolic reflector antenna for telecommunication system
04/07/1981US4260993 Dual-band antenna with periscopic supply system
03/1981
03/31/1981US4259674 Phased array antenna arrangement with filtering to reduce grating lobes
03/10/1981US4255751 Feed mechanism for a geodesic lens
03/10/1981CA1097108A1 Holographic optical satellite communication system
03/03/1981US4254421 Integrated confocal electromagnetic wave lens and feed antenna system
02/1981
02/24/1981US4253100 Inverse cassegrain antenna for multiple function radar
1 ... 90 91 92 93 94 95 96 97 98 99 100 101 102