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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10/14/1992 | CN1018686B Antenna which is electronically reconfigurable in transmission |
10/13/1992 | US5154973 Shock-resistance; superior moldability and workability |
09/29/1992 | US5151707 Linear array antenna with e-plane backlobe suppressor |
09/23/1992 | CN2116969U Improved background radiation antenna |
09/16/1992 | CN2116282U Double-feeding and-beam receiving emission-feeding device |
09/15/1992 | US5148177 In-furnace level meter and antenna therefore |
09/02/1992 | CN1064177A 天线系统 Antenna System |
08/26/1992 | EP0277205B1 Satellite communications system employing frequency reuse |
08/25/1992 | US5142698 Microwave integrated apparatus including antenna pattern for satellite broadcasting receiver |
08/25/1992 | US5142290 Wideband shaped beam antenna |
08/18/1992 | US5140337 High aperture efficiency, wide angle scanning reflector antenna |
08/12/1992 | EP0498524A2 Detection system |
08/06/1992 | WO1992013373A1 Antenna system |
08/04/1992 | US5136294 Multibeam antenna |
07/28/1992 | US5134423 Low sidelobe resistive reflector antenna |
07/08/1992 | CN2109643U Uhf/vhf compatible remote tv set antenna |
07/07/1992 | CA1304817C Supporting structure for reflector-type microwave antennas |
07/02/1992 | DE4140841A1 Microwave directional antenna with offset reflector and sub-reflector - is installed with excitation horn in trough-shaped, floor cover of cylindrical collar inclined forwards and downwards |
06/30/1992 | US5126750 Magnetic hybrid-mode horn antenna |
06/25/1992 | DE4121669A1 Folded-dipole Yagi antenna mfr. - using preform comprising rings connected at centres and bending into folded dipoles parallel to antenna axis |
06/25/1992 | DE4121668A1 Folded dipole Yagi antenna mfr. - using preform comprising rings alternately closed and having small separation, bending into folded dipoles and twisting |
06/23/1992 | CA1304155C Lens/polarizer/radome |
06/17/1992 | CN2107721U Ultra high frequency wide band antenna |
06/10/1992 | EP0277984B1 Beam-forming network |
06/09/1992 | US5121129 EHF omnidirectional antenna |
06/09/1992 | US5121124 Microwave camera |
06/03/1992 | EP0488101A1 Reconfigurable multibeam antenna |
06/02/1992 | CA1302559C High performance dipole feed for reflector antennas |
06/02/1992 | CA1302558C Portable antenna apparatus for satellite communication |
05/30/1992 | CA2056774A1 Reconfigurable transmission antenna |
05/26/1992 | US5117240 Multimode dielectric-loaded double-flare antenna |
05/19/1992 | US5115249 Arrangement for window shade-deployed radar |
05/19/1992 | US5115248 Multibeam antenna feed device |
05/13/1992 | EP0484454A1 Transmitting and receiving arrangement for portable appliances. |
05/06/1992 | EP0483686A1 Multiple beam antenna system |
05/06/1992 | EP0483586A1 Parabole reflector antenna |
05/05/1992 | US5111214 Linear array antenna with E-plane backlobe suppressor |
05/05/1992 | US5111210 Collision avoidance radar detector system |
04/30/1992 | WO1992007394A1 Satellite antenna |
04/28/1992 | US5109203 Generated and method for generating microwaves |
04/22/1992 | EP0480917A1 A solid dielectric lens aerial |
04/15/1992 | EP0480273A1 Microwave Radiator |
04/15/1992 | EP0480157A1 Angle diversity antenna with phased array feed |
04/09/1992 | DE4031856A1 Windproof support frame for offset paraboloidal reflector antenna - rotates on oblique axis between azimuthal vertical and direction of waves reflected from surface of paraboloid |
04/07/1992 | CA1298651C Electronic scanning antenna |
04/07/1992 | CA1298650C Transmit mode electronic reconfiguration antenna |
04/02/1992 | WO1992005601A1 Apparatus and methods for simulating electromagnetic environments |
03/26/1992 | DE4029668A1 Slot antenna measuring speeor route surface of vehicle - has perforated plate modifying radiation pattern of downwardly directed prim. horn mounted ahead of front wheel |
03/25/1992 | EP0477042A2 Improved arrangement for window shade-deployed radar |
03/25/1992 | EP0476131A1 Electromagnetic antenna collimator |
03/25/1992 | CN1016029B Plate-type broad-band microwave antenna with reflecting surface |
03/18/1992 | EP0475294A2 Dielectric antenna |
03/18/1992 | CN1059621A High-efficiency feeding source of paraboloid antenna |
03/12/1992 | DE4028569A1 Dielectric antenna - has dielectric filed space with dimensions specified w.r.t. wavelength |
03/11/1992 | CN2098742U Outdoor tv antenna with fan-shaped combined vibrator |
03/04/1992 | EP0473497A1 Antenna device for radiation and reception of high-frequency waves |
03/04/1992 | EP0472636A1 Antenna apparatus with reflector or lens consisting of a frequency scanned grating |
03/04/1992 | CN2098095U Parabolic antenna device for receiving multiple satellites signal at same time |
03/01/1992 | CA2041736A1 Arrangement for window shade-deployed radar |
02/26/1992 | CN2097449U Satellite tv receiving umbrella antenna |
02/25/1992 | CA1296422C Multibeam antenna |
02/12/1992 | CN1015503B Satellite tv receiving system with high dynamic range composite signal channel |
02/11/1992 | CA1295731C Steerable beam antenna system using butler matrix |
02/04/1992 | US5086303 Primary feed with central conductor defining a discharge path |
01/29/1992 | CN1058299A Receiving mushroom antenna of satellite tv |
01/28/1992 | US5084711 Microwave and millimetric wave receivers |
01/25/1992 | WO1992001953A1 Device for information transmission |
01/25/1992 | CA2087980A1 Device for information transmission |
01/21/1992 | US5083130 Pulse radar and components therefor |
01/16/1992 | DE4022072A1 Micro-stripline UHF reflector-antenna - includes two mutually parallel plates with dielectric layer between antenna and ground sides |
01/11/1992 | WO1992001319A1 A phase correcting reflection zone plate for focusing microwaves |
01/11/1992 | CA2087012A1 Phase correcting reflection zone plate for focusing microwaves |
01/08/1992 | CN2092820U Microwave antenna of reflector for the use of finel wave |
01/07/1992 | CA1294004C Angle diversity signal separator using mode conversion |
12/27/1991 | EP0268635B1 Reflector antenna with a self-supported feed |
12/24/1991 | US5075692 Antenna system |
12/18/1991 | CN2091033U Defreezing device for paraboloid microwave antenna |
12/11/1991 | EP0190279B1 Radio frequency polariser |
12/10/1991 | US5072226 Radiometer system incorporating a cylindrical parabolic reflector and minimum redundancy array feed |
12/04/1991 | EP0248886B1 High efficiency optical limited scan antenna |
11/27/1991 | EP0458620A2 Microwave antennas |
11/12/1991 | US5065165 Microwave transition |
11/05/1991 | US5063389 Antenna system with adjustable beam width and beam orientation |
10/29/1991 | US5061944 Broad-band high-directivity antenna |
10/22/1991 | CA1291257C Antenna system for hybrid communications satellite |
10/17/1991 | WO1991015880A1 Antenna arrangements |
10/16/1991 | EP0452077A1 Antenna arrangements |
10/16/1991 | CN1055448A Microwave antenna unit |
10/07/1991 | WO1991015879A1 Electromagnetic antenna collimator |
10/07/1991 | CA2058628A1 Electromagnetic antenna collimator |
10/02/1991 | EP0449107A2 Microwave antenna unit |
10/02/1991 | DE4010242A1 Antenna assembly for combined radar-video system - has optically transparent segment with conductive grid for radar wave reflection |
10/02/1991 | CN2086007U Rotation apparatus for polarized face of feed source |
09/26/1991 | DE4009322A1 Supply system for angle diversity operation of dish reflector antenna - has pair of horns between dish and sub-reflector defining angle between them |
09/18/1991 | EP0446610A1 Magnified phased array with a digital beamforming network |
09/05/1991 | DE4106250A1 Polarisation independent dipole aerial array - has number of identical aerial units symmetrically arranged in two dimensional array each unit with dipole element |
09/04/1991 | EP0444834A2 In furnace- level meter and antenna therefor |
09/04/1991 | CN1054318A In-furnace level meter and antenna therefor |
09/03/1991 | USH966 Two-beam scanning antenna requiring no rotary joints |
09/03/1991 | CA1288480C Satellite communications system employing frequency reuse |