Patents for H01Q 3 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system (21,949) |
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04/01/1998 | EP0832508A1 Device for adjusting the beam direction of an antenna, and feed line structure therefor |
03/31/1998 | US5734356 Construction for portable disk antenna |
03/31/1998 | US5734350 Microstrip wide band antenna |
03/31/1998 | US5734345 Antenna system for controlling and redirecting communications beams |
03/31/1998 | CA2133038C Plane array antenna for receiving satellite broadcasting |
03/26/1998 | WO1998012571A1 Position determination using multiple base station signals |
03/25/1998 | EP0831553A2 Antenna device |
03/25/1998 | EP0831552A2 Array antenna, antenna device with the array antenna and antenna system employing the antenna device |
03/25/1998 | EP0831551A2 Antenna device |
03/25/1998 | EP0831548A2 Antenna |
03/25/1998 | CN2277117Y Antenna steering remote-control device |
03/24/1998 | US5731790 Compact optical controller for phased array systems |
03/19/1998 | WO1998011626A1 Antenna system for enhancing the coverage area, range and reliability of wireless base stations |
03/19/1998 | CA2265987A1 Antenna system for enhancing the coverage area, range and reliability of wireless base stations |
03/18/1998 | EP0829922A2 Phase controlled antenna |
03/18/1998 | EP0829920A2 Method for generation of sum- and difference antenna patterns with low sidelobes for planar antenna arrays |
03/18/1998 | EP0829919A1 Satellite communication device mounted on mobile body |
03/18/1998 | EP0829918A2 A multifunction structurally integrated VHF-UHF aircraft antenna system |
03/18/1998 | EP0681747A4 Dish antenna structures and hydraulic control of the orientation thereof. |
03/18/1998 | CN1176566A Directivity control antenna apparatus for shaping radiation pattern of antenna of base station in mobile communication system in accordance with estimated directions or positions of mobile stations |
03/17/1998 | US5729240 Method of controlling a non-geostationary satellite antenna positioner |
03/17/1998 | US5729239 Voltage controlled ferroelectric lens phased array |
03/17/1998 | US5729236 Identification system reader with multiplexed antennas |
03/12/1998 | WO1998010482A1 Microwave transceiver/antenna system with adjustable mounting and alignment mechanism |
03/12/1998 | WO1998010309A1 Transmit/receive module for planar active apertures |
03/12/1998 | WO1998010305A1 Microwave energy implemented aircraft landing system |
03/12/1998 | DE19737136A1 Antennenvorrichtung mit steuerbarer Richtwirkung Antenna device with a controllable directional effect |
03/12/1998 | DE19636151A1 Phase controlled antenna for radar device |
03/12/1998 | DE19636084A1 Phase controlled antenna for radar device |
03/11/1998 | EP0828143A2 Optical system employing terahertz radiation |
03/11/1998 | EP0827638A1 Cellular communication system having device coupling distribution of antennas to plurality of transceivers |
03/11/1998 | CN2276202Y Infrared telecontrol steering antenna |
03/10/1998 | US5726662 Frequency compensated multi-beam antenna and method therefor |
03/10/1998 | US5726661 Method and apparatus for initial pointing of an antenna |
03/10/1998 | US5726655 Anisotropic microwave composite |
03/05/1998 | WO1998009372A1 Method of and apparatus for filtering intermodulation products in a radiocommunication system |
03/04/1998 | EP0826649A1 Methods of making ferroelectric ceramic-polymer composites for voltage-variable dielectric tuning and structures using same |
03/04/1998 | EP0826250A1 An antenna device with two radiating elements having an adjustable phase difference between the radiating elements |
03/03/1998 | US5724044 Electrically scanning microwave radiometer |
02/26/1998 | WO1998008321A1 Apparatus and method for providing a beacon signal in a wireless communication system |
02/26/1998 | WO1998008319A1 Rake receiver for spread spectrum signal demodulation |
02/25/1998 | EP0825674A1 Single-wire spiral antenna |
02/25/1998 | EP0824765A1 Antenna device |
02/24/1998 | USRE35736 Distributed antenna system |
02/24/1998 | US5722089 Antenna control device for a radio communication apparatus having a plurality of antennas |
02/24/1998 | US5721556 Fiberoptic manifold and time delay arrangement for a phased array antenna |
02/24/1998 | US5721553 For holding an object in a measuring apparatus |
02/24/1998 | US5721194 Tuneable microwave devices including fringe effect capacitor incorporating ferroelectric films |
02/19/1998 | WO1997050186A3 System and method for adaptive interference cancelling |
02/17/1998 | US5719975 Optically reconfigurable conductive line element |
02/17/1998 | US5719586 Spherical antenna pattern(s) from antenna(s) arranged in a two-dimensional plane for use in RFID tags and labels |
02/17/1998 | US5719583 Mobile communication system which performs antenna gain control |
02/11/1998 | EP0823750A1 Synchronous rotation dual-axis mechanical hinge assembly |
02/11/1998 | CN1173266A Method and apparatus for providing redundant radio coverage within a vellular communication system |
02/11/1998 | CN1173265A Spectrally efficient high capacity wireless communication systems |
02/10/1998 | US5717405 Four-port phase and amplitude equalizer for feed enhancement of wideband antenna arrays with low sum and difference sidelobes |
02/10/1998 | US5717399 Radar device for vehicle use |
02/05/1998 | WO1998005180A1 Circuitry and method for time division multiple access communication system |
02/05/1998 | WO1998005089A1 A phase control device |
02/05/1998 | DE19630716A1 Swivel apparatus especially for mobile radar antenna |
02/04/1998 | CN1172566A Multiple access digital transmitter and receiver |
02/04/1998 | CN1172356A Mobile radio antenna |
02/03/1998 | US5714961 Planar antenna directional in azimuth and/or elevation |
02/03/1998 | US5714960 Parabolic antenna |
01/29/1998 | WO1998004054A1 System and method for reducing cumulative noise in a distributed antenna network |
01/29/1998 | WO1998004052A1 System and method for equalizing the delay time for transmission paths in a distributed antenna network |
01/29/1998 | WO1998004017A1 Geosynchronous communications satellite system with reconfigurable service area |
01/28/1998 | EP0682821A4 Portable antenna test apparatus. |
01/28/1998 | CN1171664A Signal processing apparatus and method for reducing effects of interference and noise in wireless communications utilizing antenna array |
01/27/1998 | US5712642 Spatial power combiner using subharmonic beam position control |
01/22/1998 | WO1998002765A1 Wavelength-addressable optical time-delay network and phased array antenna incorporating the same |
01/21/1998 | EP0820116A2 Mobile radio antenna |
01/21/1998 | CN1170972A Spiral-shaped array for broadband imaging |
01/21/1998 | CN1037135C Antenna capable of producing desirable radiation patterns without madifying antenua structure |
01/20/1998 | US5710990 Transmitter which adjusts peak-to-average power of a multicarrier signal by switching between a group of channels and a phase-adjusted group of channels |
01/20/1998 | US5710569 Antenna system having a choke reflector for minimizing sideward radiation |
01/15/1998 | WO1998001964A1 Modular transmission system and method |
01/15/1998 | WO1998001946A1 Controller-based radio frequency amplifier module and method |
01/15/1998 | WO1998001922A1 Focused narrow beam communication system |
01/15/1998 | WO1998001921A1 A planar dual-frequency array antenna |
01/15/1998 | CA2259564A1 A planar dual-frequency array antenna |
01/14/1998 | EP0818082A1 Process and receiver for the reconstruction of signals distorted by multi-directional diffusion |
01/14/1998 | EP0818060A1 Apparatus and method for adaptive beamforming in an antenna array |
01/14/1998 | EP0818059A1 Wide antenna lobe |
01/14/1998 | EP0818058A1 Phased array antenna provided with a calibration network |
01/14/1998 | CN2272615Y Multiple satellite antenna converting switch |
01/14/1998 | CN1170282A Devices for transmitter weights and methods therefor |
01/13/1998 | US5708971 Two-way paging system and apparatus |
01/13/1998 | US5708679 Hitless ultra small aperture terminal satellite communication network |
01/13/1998 | US5708442 Correlation radiometer imaging system |
01/13/1998 | US5708441 Antenna directivity control method and channel configuration method for a mobile communication system |
01/08/1998 | WO1998000930A1 A signal processing method utilizing an eigenvector corresponding to the maximum eigenvalue of an autocorrelation matrix of received signals for an antenna array system |
01/07/1998 | EP0817309A1 Reconfigurable zonal beam forming system for an antenna on an orbiting satellite and optimisation procedure for the reconfiguration |
01/07/1998 | EP0817308A2 Method for the automatic selection of one beam among those formed by a multibeam antenna, in particular for radiomobile systems |
01/07/1998 | EP0817307A2 Microwave antenna feed structure |
01/07/1998 | EP0815699A1 Fixed station of a mobile radio-telephone system with changeable aerial characteristic |
01/07/1998 | EP0815692A2 A two-way paging system and apparatus |
01/07/1998 | CN1169540A Circularly symmetric, zero redundancy, planar array having broad frequency range applications |
01/07/1998 | CN1036962C Antenna system with helical feeders |
12/31/1997 | WO1997050186A2 System and method for adaptive interference cancelling |