Patents
Sitemap › H01 - Basic electric elements › H01Q - Aerials › 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
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)
08/1998
08/11/1998US5793334 For an antenna
08/11/1998US5793258 For use by subscription television subscribers
08/11/1998US5793001 For transducing acoustic or electromagnetic radiant energy
08/06/1998WO1998034295A1 Antenna operating with two isolated channels
08/05/1998EP0856909A1 Cellular antennae
08/05/1998EP0856908A1 Antenna beamforming device for channel multiplex systems
08/05/1998EP0705486B1 Radiation sensor
08/05/1998CN1189705A Antenna-Shared distributor and transmission and receiving apparatus usingsame
08/04/1998US5790081 Constant impedance matching system
08/04/1998US5790077 Antenna geometry for shaped dual reflector antenna
08/03/1998CA2226334A1 Unit for forming a beam of multiplex channels
07/1998
07/29/1998EP0760170B1 Ultrawideband antenna
07/29/1998CN1188995A Antenna apparatus and transmission and receiving apparatus using same
07/22/1998EP0854537A2 Ultralight deployable waveguide lens antenna system
07/22/1998EP0737371B1 Planar antenna
07/15/1998EP0853351A2 Antenna system
07/15/1998EP0853350A2 Mobile tracking antenna made by semiconductor processing technique
07/15/1998EP0852705A1 Microwave waveguide for tank level sensors
07/14/1998US5781163 Low profile hemispherical lens antenna array on a ground plane
07/08/1998EP0852409A2 Antenna apparatus and transmission and receiving apparatus using same
07/07/1998US5777585 Antenna coupling apparatus, external-antenna connecting apparatus, and onboard external-antenna connecting apparatus
07/07/1998US5777584 Planar antenna
07/07/1998US5777581 Tunable microstrip patch antennas
07/07/1998US5777572 Device for damaging electronic equipment using unfocussed high power millimeter wave beams
07/01/1998CN1186245A Obstacle sensor operating by collimation and focusing of emitted wave
06/1998
06/30/1998US5774095 Helical antenna system
06/30/1998US5774091 Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities
06/25/1998WO1998027608A1 Reflector antennas
06/24/1998EP0849825A2 Antenna arrangement, in particular for motor vehicles
06/24/1998EP0849612A2 Electromagnetic radiation disruption elements
06/17/1998EP0680664B1 Radar apparatus
06/16/1998US5767953 Light beam range finder
06/16/1998US5767810 Microstrip antenna device
06/16/1998US5767807 Communication system and methods utilizing a reactively controlled directive array
06/09/1998US5764199 Low profile semi-cylindrical lens antenna on a ground plane
06/04/1998WO1998024145A1 Microwave antenna
06/04/1998DE19703095C1 Housing for microwave transmitter or receiver for road vehicle radar system
06/04/1998DE19648203A1 Multiple beam radar system for motor vehicle
06/03/1998EP0845834A2 Method and apparatus for reconfiguring antenna radiation patterns
06/03/1998EP0845833A2 On-orbit reconfigurability of a shaped reflector with feed/reflector defocusing and reflector gimballing
06/02/1998US5760749 Antenna integral-type transmitter/receiver system
06/02/1998US5760740 In a receiving system
06/02/1998US5760397 Millimeter wave imaging system
05/1998
05/26/1998US5757330 Antenna having improved directionality
05/26/1998US5757323 Antenna arrangements
05/26/1998US5757320 Short range, ultra-wideband radar with high resolution swept range gate
05/20/1998EP0843381A2 Multibeam antenna
05/20/1998EP0843182A2 Obstacle sensor operating by collimation and focusing of the emitted wave
05/19/1998US5754140 Beam sharpened, low sidelobe antenna system
05/14/1998WO1998020579A1 Lens arrangement suited for focusing radar waves
05/14/1998DE19712098A1 Vehicle radar sensor
05/14/1998DE19645816A1 Linsenanordnung zur Bündelung von Radarwellen Lens assembly for focusing radar waves
05/13/1998CN1181640A Multifunction structurally integrated VHF-UHF aircraft antenna system
05/05/1998US5748156 High-performance antenna structure
05/05/1998US5748151 Low radar cross section (RCS) high gain lens antenna
05/05/1998US5748146 Parallax induced polarization loss to reduce sidelobe levels
04/1998
04/30/1998DE19644164A1 Automobile radar system for automatic velocity regulation
04/29/1998EP0838693A1 Antenna-shared distributor and transmission and receiving apparatus using same
04/28/1998US5745084 Very small aperture terminal & antenna for use therein
04/28/1998US5745082 Radiation sensor
04/23/1998WO1998016967A1 Satellite dish cover
04/22/1998EP0837524A2 Antenna geometry for shaped dual reflector antenna
04/09/1998WO1998015034A1 Antenna having improved blockage fill-in characteristics
04/09/1998WO1998015033A1 Dielectric lens assembly for a feed antenna
04/08/1998CN2278276Y 2.4 m antenna for satellite communicational/digital station vehicle
04/07/1998US5736966 Adjustable microwave antenna
04/02/1998DE19642810C1 Directional radar system for anticollision and vehicle speed measurement
04/02/1998DE19637057A1 Magnetic effective broadband antenna for HF
03/1998
03/25/1998EP0831552A2 Array antenna, antenna device with the array antenna and antenna system employing the antenna device
03/25/1998EP0831548A2 Antenna
03/25/1998EP0831547A2 Microstrip antenna
03/25/1998EP0830711A1 Toroidal antenna
03/25/1998EP0830710A1 Contrawound antenna
03/25/1998EP0830566A1 Light beam range finder
03/25/1998CN1037882C 天线系统 Antenna System
03/19/1998WO1998011625A1 Antenna system
03/18/1998EP0829918A2 A multifunction structurally integrated VHF-UHF aircraft antenna system
03/17/1998US5729239 Voltage controlled ferroelectric lens phased array
03/17/1998US5729237 Probe fed layered antenna
03/12/1998WO1998010486A1 Satellite reception antenna
03/12/1998WO1998010305A1 Microwave energy implemented aircraft landing system
03/11/1998EP0799428A4 An impulse radar with swept range gate
03/11/1998CN1175802A Loop antenna
03/03/1998US5724042 Radar module and antenna device
02/1998
02/26/1998WO1998008270A1 Multifocus reflector antenna
02/25/1998EP0824765A1 Antenna device
02/19/1998WO1998007212A1 Launcher for plural band feed system
02/19/1998WO1998007211A1 Shrouded horn feed assembly
02/19/1998WO1998007210A1 Dielectrically loaded wide band feed
02/19/1998WO1998007209A1 Plural band feed system
02/19/1998DE19633147A1 Multifocus-Reflektorantenne Multi-focus reflector antenna
02/18/1998CN1173949A Antenna for a portable radio communication device
02/12/1998WO1998006147A1 A corrugated subreflector
02/11/1998EP0793863A4 Antenna/downconverter having low cross polarization and broad bandwidth
02/11/1998CN2274380Y Television receiving antenna
02/11/1998CN1173226A An impulse radar with swept range gate
02/10/1998US5717399 Radar device for vehicle use
02/04/1998EP0822610A2 Reflector antenna
02/03/1998US5714947 Vehicle collision avoidance system
01/1998
01/28/1998EP0821430A2 Loop antenna
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