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