Patents
Sitemap › H01 - Basic electric elements › H01Q - Aerials › H01Q 25 - Aerials or aerial systems providing at least two radiating patterns
Patents for H01Q 25 - Aerials or aerial systems providing at least two radiating patterns (4,128)
11/1998
11/25/1998EP0880196A1 Compact monopulse source for an antenna with optical focusing
11/24/1998US5841405 Octave-band antennas for impulse radios and cellular phones
11/24/1998CA2046301C Antenna arrays
11/19/1998DE19719953A1 Vehicle radar sensor e.g. for distance warning
11/17/1998US5838276 Microwave energy implemented aircraft landing system
11/12/1998WO1998051023A1 Network for controlling steerable beams
11/12/1998WO1998050981A1 Radio antenna system
11/12/1998CA2288635A1 Radio antenna system
11/11/1998EP0877444A1 Downlink beam forming architecture for heavily overlapped beam configuration
11/05/1998DE19714578A1 Radarsystem, insbesondere für Kraftfahrzeuganwendungen Radar system, particularly for automotive applications
11/03/1998US5831582 Multiple beam antenna system for simultaneously receiving multiple satellite signals
11/03/1998US5831581 Dual frequency band planar array antenna
10/1998
10/29/1998WO1998034294A3 Multi-dimensional beamforming device
10/29/1998WO1998032188A3 Direct digital synthesizer driven phased array antenna
10/20/1998US5825333 Offset multibeam antenna
10/15/1998WO1998045725A1 Radar system, including for use in a vehicle
10/15/1998WO1998017078A3 Interstitial sector system
10/14/1998CN1195900A Multibeam antenna
10/06/1998US5818385 Communication system for controlling radiation patterns
09/1998
09/30/1998EP0867052A1 Antenna assembly and associated method for radio communication device
09/29/1998US5815112 Planar array antenna and phase-comparison monopulse radar system
09/22/1998US5812947 Cellular/satellite communications systems with improved frequency re-use
09/22/1998US5812089 Apparatus and method for beamforming in a triangular grid pattern
09/22/1998US5812088 Beam forming network for radiofrequency antennas
09/22/1998CA2124459C Compact broadband microstrip antenna
09/16/1998EP0795257B1 A beamed antenna system
09/03/1998WO1998038693A1 Versatile antenna array for multiple pencil beams and efficient beam combinations
09/03/1998WO1998017022A3 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
09/02/1998EP0861559A1 Multichannel radio frequency transmission system to deliver wide band digital data into independent sectorized service areas
08/1998
08/27/1998DE19705795A1 Radar system on board of moving platform
08/26/1998CN1191637A Large phased-array communications satellite
08/20/1998WO1998036471A1 Method and apparatus for directional radio communication
08/19/1998EP0859426A2 A low cost Butler matrix modeformer circuit
08/19/1998EP0858606A1 Microwave energy implemented aircraft landing system
08/18/1998US5797082 Communication receiver for receiving satellite broadcasts
08/11/1998US5793334 For an antenna
08/06/1998WO1998034294A2 Multi-dimensional beamforming device
08/06/1998CA2279291A1 Multi-dimensional beamforming device
08/05/1998EP0856910A2 Cellular antennae
08/04/1998US5790070 Network and method for controlling steerable beams
07/1998
07/30/1998WO1998033233A1 Directional-beam generative apparatus and associated method
07/29/1998EP0799506B1 Omnidirectional antenna and process for producing the same
07/29/1998CN1189068A 无线通信系统 The wireless communication system
07/23/1998WO1998032188A2 Direct digital synthesizer driven phased array antenna
07/21/1998US5784031 Versatile anttenna array for multiple pencil beams and efficient beam combinations
07/15/1998EP0853350A2 Mobile tracking antenna made by semiconductor processing technique
07/14/1998US5781157 Multiple beam radar system with enhanced sidelobe supression
07/08/1998EP0852076A1 Aerial for a central station of a point-to-multi-point radio link system
07/07/1998US5778324 Antenna downlink beamsteering arrangement
07/07/1998US5777579 Low cost butler matrix modeformer circuit
06/1998
06/30/1998US5774090 Method and device to broaden the radiation pattern of an active antenna
06/25/1998WO1998027612A1 Method and device for directionally selective emission of electromagnetic waves
06/25/1998DE19652595A1 Verfahren und Vorrichtung zur richtungsselektiven Abstrahlung elektromagnetischer Wellen Method and apparatus for directionally selective radiation of electromagnetic waves
06/24/1998EP0849892A2 Signal multiplexing method and transmitting/receiving apparatus therefor
06/24/1998CN1038887C Active transmit phased array antenna
06/23/1998US5771017 Base station antenna arrangement
06/18/1998WO1998026472A1 Dual polarized electronically scanned antenna
06/16/1998US5767814 Mast mounted omnidirectional phase/phase direction-finding antenna system
06/16/1998US5767793 Compact vehicle based rear and side obstacle detection system including multiple antennae
06/09/1998US5764187 For transmitting and receiving signals
06/04/1998WO1998024145A1 Microwave antenna
06/04/1998DE19648203A1 Multiple beam radar system for motor vehicle
06/03/1998EP0845834A2 Method and apparatus for reconfiguring antenna radiation patterns
06/02/1998US5761605 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
06/02/1998US5760741 Beam forming network for multiple-beam-feed sharing antenna system
05/1998
05/26/1998US5757318 Narrow beam wireless systems with angularly diverse antennas
05/20/1998EP0843381A2 Multibeam antenna
05/19/1998US5754140 Beam sharpened, low sidelobe antenna system
05/19/1998US5754138 Method and intelligent digital beam forming system for interference mitigation
05/14/1998WO1998020579A1 Lens arrangement suited for focusing radar waves
05/14/1998DE19645816A1 Linsenanordnung zur Bündelung von Radarwellen Lens assembly for focusing radar waves
05/13/1998EP0841760A2 Cell-clustering arrangements and corresponding antenna patterns for wireless communication networks employing high-altitude aeronautical antenna platforms
05/12/1998CA2070082C Low orbit satellite telecommunication system for mobile stations
04/1998
04/28/1998US5745858 Base station transmitter/receiver capable of varying composite directivity of antennas
04/28/1998US5745084 Very small aperture terminal & antenna for use therein
04/28/1998US5745077 High efficiency satellite equally loaded transmitting communication system
04/23/1998WO1998017078A2 Interstitial sector system
04/23/1998WO1998017022A2 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
04/23/1998CA2268451A1 Interstitial sector system
04/22/1998EP0837523A2 Adaptive antenna
04/15/1998CN2279001Y Omnibearing antenna vibrator composed of six parts
04/14/1998US5739788 Adaptive receiving antenna for beam repositioning
04/08/1998EP0834955A2 Feed networks for antennae
04/07/1998US5736963 Feed device for a multisource and multibeam antenna
04/07/1998US5736959 Earth-fixed cell beam management for satellite communication system using dielectic lens-focused scanning beam antennas
04/07/1998US5736907 For controlling the pointing of an antenna aboard an orbiting satellite
04/02/1998DE19649838C1 Controlled antennae coherent radar measurement method for ship and aircraft identification
04/01/1998EP0832509A1 Method and apparatus for adaptive transmission beam forming in a wireless communication system
03/1998
03/31/1998US5734349 High capacity multibeam antenna with electronic scanning in transmission
03/25/1998EP0831551A2 Antenna device
03/18/1998EP0829922A2 Phase controlled antenna
03/18/1998EP0829920A2 Method for generation of sum- and difference antenna patterns with low sidelobes for planar antenna arrays
03/12/1998WO1998010305A1 Microwave energy implemented aircraft landing system
03/12/1998DE19636151A1 Phase controlled antenna for radar device
03/11/1998EP0827638A1 Cellular communication system having device coupling distribution of antennas to plurality of transceivers
03/10/1998US5726662 Frequency compensated multi-beam antenna and method therefor
03/03/1998US5724042 Radar module and antenna device
02/1998
02/25/1998EP0825671A2 Dual frequency band planar array antenna
02/19/1998WO1998007211A1 Shrouded horn feed assembly
02/11/1998CN1173266A Method and apparatus for providing redundant radio coverage within a vellular communication system
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