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)
07/1999
07/20/1999US5926127 Motor vehicle radar system
07/15/1999WO1999035710A1 Reflector based dielectric lens antenna system
07/14/1999EP0929122A2 Reflector based dielectric lens antenna system
07/13/1999US5923301 Installed on a ceiling surface or a side wall surface
07/13/1999US5922081 Excitation system for an antenna with a parabolic reflector and a dielectric radiator
07/08/1999WO1999034478A1 Improved positioning of shaped directional transmitting and transmitting/receiving antenna array elements
07/08/1999CA2254139A1 Reflector based dielectric lens antenna system
07/07/1999EP0927439A1 Antenna device with improved channel isolation
07/06/1999US5920289 Heated satellite reflector assembly
06/1999
06/30/1999EP0925618A1 Satellite reception antenna
06/24/1999WO1999031757A1 Dual band antenna
06/23/1999EP0924796A2 Micro-strip antenna
06/22/1999US5913549 Planar microstrip Yagi antenna array and process for making same
06/16/1999EP0923155A1 Adaptive array antenna
06/15/1999US5913151 Small antenna for receiving signals from constellation of satellites in close geosynchronous orbit
06/15/1999US5912645 Array feed for axially symmetric and offset reflectors
06/10/1999WO1999028993A1 Transmission polarizer
06/10/1999CA2279262A1 Transmission polarizer
06/09/1999EP0921590A2 Antenna for communicating with low earth orbit satellite
06/09/1999CN1219004A Antenna for low globe orbit satellite communication
06/02/1999EP0920076A2 Multiple beam by shaped reflector antenna
06/02/1999EP0919072A1 Multifocus reflector antenna
06/02/1999DE19845870A1 Reflector-antenna arrangement for radar
06/01/1999US5909195 Antennas employing U-dipole elements
05/1999
05/26/1999EP0918367A2 Tracking control system and method for alignment of a pivoting reflector antenna with a radiating source
05/26/1999CN1217827A Adaptive array antenna
05/25/1999US5907309 Dielectrically loaded wide band feed
05/25/1999US5907307 Antenna for a portable radio communication device
05/25/1999CA2011298C Dual polarization dipole array antenna
05/20/1999WO1999010950A3 Improved reflector antenna with a self-supported feed
05/19/1999EP0916169A1 Antenna system
05/19/1999CA2252139A1 Tracking system
05/18/1999US5905474 For reducing side lobes of a microwave antenna
05/18/1999US5905473 Adjustable array antenna
05/18/1999US5905457 Vehicle radar safety apparatus
05/12/1999EP0915529A1 Positionable satellite antenna with reconfigurable beam
05/11/1999US5903240 Surface mounting antenna and communication apparatus using the same antenna
05/04/1999US5900847 Dielectric lens apparatus
05/04/1999US5900842 Inexpensive directional antenna that is easily tuned and weather resistant
04/1999
04/30/1999CA2247700A1 Multiple beam by shaped reflector antenna
04/29/1999WO1999021247A1 Directional antenna assembly for vehicular use
04/27/1999US5898529 Deployable space-based telescope
04/27/1999US5898410 Pre-tuned hybrid logarithmic yagi antenna system
04/22/1999WO1999019938A1 Low-windload satellite antenna
04/21/1999EP0909396A1 A beam sharpened, low sidelobe antenna system
04/20/1999US5896108 Microstrip line fed microstrip end-fire antenna
04/20/1999US5896107 Dual polarized aperture coupled microstrip patch antenna system
04/15/1999DE19757992A1 Control system for aligning a pivotable reflector antenna
04/14/1999EP0643876B1 Antenna
04/08/1999WO1999017400A1 Method of producing an antenna element assembly
04/07/1999CN2313296Y Eight-multiple diversity receiving simple device for communication signals
04/06/1999US5892487 Antenna system
04/06/1999US5892485 Dual frequency reflector antenna feed element
03/1999
03/31/1999EP0905815A1 Multiple beam antenna and beamforming network
03/31/1999CN1212791A Combination satellite and VHF/UHF receiving antenna
03/31/1999CN1212790A Folded bow-tie antenna
03/31/1999CN1212789A Orthogonal switched antenna system
03/30/1999US5889498 End-fire array antennas with divergent reflector
03/30/1999US5889497 Ultrawideband transverse electromagnetic mode horn transmitter and antenna
03/25/1999WO1999014507A1 A method for fixing one or several elements to a hollow profile, and an antenna comprising one or several booms having a square cross section
03/24/1999EP0903806A2 Quasi-optical filter and antenna arrangement with such a filter
03/24/1999EP0903566A2 Imaging system functioning on submillimeter waves
03/23/1999US5886673 Apparatus and method for improving portability of satellite antennas
03/23/1999US5886672 Collapsible antenna
03/18/1999DE19737254C1 Antenna for receiving electromagnetic wave TV signals from satellites in the microwave and millimetre wave ranges
03/17/1999EP0902498A1 Variable directivity antenna and method of controlling variable directivity antenna
03/16/1999US5883602 Wideband flat short foci lens antenna
03/16/1999US5883601 Plural slot antenna fed with dielectric strip and dielectric resonators
03/11/1999CA2246925A1 Mobile telecommunication apparatus
03/10/1999EP0900455A1 Antenna device
03/09/1999US5880699 Ultra-wide bandwidth dish antenna
03/04/1999WO1999010950A2 Improved reflector antenna with a self-supported feed
03/03/1999EP0899814A1 Radiating structure
03/02/1999US5877663 Microwave waveguide for tank level sensors
02/1999
02/23/1999US5874925 Parabolic antenna capable of adjusting the elevation angle of a feed horn
02/23/1999US5874924 Spacecraft antenna array with directivity enhancing rings
02/23/1999US5874922 Antenna
02/18/1999DE19732569A1 Quasi-optical harmonic wave filter for HF signal generation
02/17/1999EP0897201A1 Cylindrical reflector with sliding radiating elements
02/17/1999EP0896750A1 Antenna system
02/17/1999EP0896749A1 Microwave antenna array for a motor vehicle radar system
02/16/1999US5872547 Conical omni-directional coverage multibeam antenna with parasitic elements
02/16/1999US5872544 Cellular antennas with improved front-to-back performance
02/09/1999US5870062 For a reflector
02/09/1999US5870059 Antenna mast with level indicating means
02/04/1999WO1999005754A1 Antenna device with improved channel isolation
02/03/1999EP0895303A1 Directional antenna system with crossed polarisation
02/03/1999CN2306578Y Multipath-resisting direction finding nine bay interferometer antenna
02/02/1999US5867130 Directional center-fed wave dipole antenna
02/02/1999US5867126 Surface-mount-type antenna and communication equipment using same
02/02/1999US5867120 Transmitter-receiver
01/1999
01/27/1999CN1206507A Antenna system
01/19/1999US5861855 Method and apparatus for de-icing a satellite dish antenna
01/13/1999EP0891003A1 Method and apparatus for improving pattern bandwidth of shaped beam reflectarrays
01/13/1999EP0647359B1 Airport surveillance radar system for microburst detection
01/13/1999CN1204874A Wide band printed phased array antenna for microwave and mm-wave applications
01/12/1999US5859619 For a satellite-to-satellite communication system
01/12/1999US5859618 Composite rooftop antenna for terrestrial and satellite reception
01/12/1999US5859615 Omnidirectional isotropic antenna
01/08/1999CA2210080A1 Microstrip line fed microstrip end-fire antenna
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