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) |
---|
03/11/1999 | WO1999012229A1 Electronically scanned ferrite line source |
03/11/1999 | WO1998054842A3 Method and apparatus for receiving multi-region broadcast entertainment transmissions at a moving receiver station |
03/11/1999 | DE19838058A1 Amplitude and phase measuring of RF signals from antennae esp. unwanted signals |
03/11/1999 | CA2302299A1 Antenna array and method therefor |
03/10/1999 | EP0901184A1 Calibration method for transmit and/or receive chains driving an active array, and corresponding mobile station |
03/10/1999 | EP0901183A2 Phase control of transmission antennas |
03/10/1999 | EP0900456A1 Process and device for reception with directional resolution |
03/09/1999 | CA2153181C Signal level measuring apparatus |
03/05/1999 | CA2243147A1 Phase control of transmission antennas |
03/04/1999 | WO1999010999A2 Wireless video transfer from computer to tv |
03/04/1999 | WO1999010949A1 Power-operated antenna mount for tracking satellites with circular orbit |
03/04/1999 | WO1998054851A3 A radio system and a call set-up method |
03/04/1999 | DE19738254A1 Transceiver arrangement for phase array antenna |
03/04/1999 | CA2301578A1 Wireless video transfer from computer to tv |
03/04/1999 | CA2243857A1 Process for calibrating receiver and/or transmitter chains piloting a radiator network, and the corresponding mobile station |
03/03/1999 | EP0899896A1 Method and system to estimate spatial parameters of transmission channels |
03/03/1999 | EP0899815A2 Transmit/receive-module with temperature compensation for phased array antennae |
03/03/1999 | EP0899813A2 Method for determining the directivity of a base station and such a base station |
03/03/1999 | EP0899580A2 Target locating system and approach guidance system |
03/03/1999 | EP0898849A1 Method and apparatus for directional radio communication |
03/03/1999 | CN1209919A Method and apparatus for cellular radiotelephone base stations using selected multiple diversity reception |
03/02/1999 | US5877729 Wide-beam high gain base station communications antenna |
03/02/1999 | US5877726 Antenna device |
03/02/1999 | US5877660 Phase shifting device with rotatable cylindrical case having driver means on the end walls |
03/02/1999 | US5876789 Curved three dimensional mold for radio frequency device |
03/02/1999 | US5875685 Multi-axis positioner with base-mounted actuators |
02/25/1999 | WO1999009610A1 Antenna unit and signal switching circuit |
02/25/1999 | WO1999009607A2 Device for compensation of diffraction divergence |
02/25/1999 | CA2301541A1 Method and apparatus for compensation of diffraction divergence of beam of an antenna system |
02/24/1999 | EP0898324A1 Antenna system |
02/24/1999 | EP0898174A1 Radar apparatus |
02/24/1999 | EP0636251B1 Method of monitoring an area, and a device for carrying out the method |
02/24/1999 | CN1209234A Efficient apparatus for simultaneous modulation and digital beamforming for an antenna array |
02/23/1999 | US5874925 Parabolic antenna capable of adjusting the elevation angle of a feed horn |
02/23/1999 | US5874915 Wideband cylindrical UHF array |
02/17/1999 | EP0897230A2 A wireless lan system and a transmitter-receiver in a wireless LAN system |
02/17/1999 | EP0897201A1 Cylindrical reflector with sliding radiating elements |
02/17/1999 | EP0897199A1 Active repeater for transmission system |
02/17/1999 | CN1208540A Communication system with a beamformed control channel and method of system control |
02/17/1999 | CN1208504A Antenna assembly and associated method for radio communication device |
02/16/1999 | US5872547 Conical omni-directional coverage multibeam antenna with parasitic elements |
02/16/1999 | US5872540 Digital interference suppression system for radio frequency interference cancellation |
02/16/1999 | US5872369 Solid-state antenna switch and field-effect transistor |
02/11/1999 | WO1999007034A1 A method and a device at antenna calibration |
02/11/1999 | CA2297833A1 A method and a device at antenna calibration |
02/10/1999 | EP0896383A2 A multibeam phased array antenna system |
02/10/1999 | EP0895701A1 Method for optimising coverage by reshaping antenna pattern |
02/10/1999 | EP0895678A2 Method and apparatus for antenna realignment in a mobile radiotelephone using an injected audio signal |
02/10/1999 | CN1207615A Active repeater for transmission system |
02/09/1999 | US5870681 Self-steering antenna array |
02/09/1999 | US5870062 For a reflector |
02/09/1999 | US5870060 For a space satellite |
02/09/1999 | US5870059 Antenna mast with level indicating means |
02/04/1999 | DE19741872C1 Adaptive receiver for CDMA base station |
02/03/1999 | EP0895302A2 An antenna assembly |
02/03/1999 | EP0895301A2 Multiplex radio communication apparatus |
02/03/1999 | EP0894414A1 Method and system for selecting an antenna beam of a base station of a radio system |
02/03/1999 | EP0894370A1 Dividable transmit antenna array for a cellular base station and associated method |
02/03/1999 | CN1207004A Radio telephone with differential driving various antenna structure and driving method |
02/02/1999 | US5867769 Transmission power control apparatus in earth station for satellite communication |
02/02/1999 | US5867123 Phased array radio frequency (RF) built-in-test equipment (BITE) apparatus and method of operation therefor |
01/31/1999 | CA2242729A1 Active repeater for transmission system |
01/30/1999 | CA2244369A1 Multiplex radio communication apparatus |
01/28/1999 | WO1999004451A1 Satellite recognizer system |
01/27/1999 | EP0893036A1 Rotating lobe access method |
01/27/1999 | EP0892995A1 Microstrip wide band antenna and radome |
01/26/1999 | US5864322 Dynamic plasma driven antenna |
01/26/1999 | US5864320 Synchronous rotation dual-axis mechanical hinge assemblies |
01/26/1999 | US5864317 Simplified quadrant-partitioned array architecture and measure sequence to support mutual-coupling based calibration |
01/21/1999 | WO1998043459A3 Method for channel evaluation using receive signals transmitted via a radio channel |
01/19/1999 | US5862459 Method of and apparatus for filtering intermodulation products in a radiocommunication system |
01/19/1999 | US5861859 Antenna assembly and portable radio apparatus |
01/19/1999 | US5861845 Wideband phased array antennas and methods |
01/19/1999 | US5861844 Method and apparatus for providing redundant coverage within a cellular communication system |
01/19/1999 | US5861843 Phase array calibration orthogonal phase sequence |
01/19/1999 | US5861840 Telecommunications antenna |
01/19/1999 | US5861839 Antenna apparatus for creating a 2D image |
01/19/1999 | US5860327 Apparatus for two dimensional orientation of an object |
01/14/1999 | WO1999001951A1 Method and system for rejecting interfering signals |
01/14/1999 | WO1999001950A2 Interpretation of a received signal |
01/14/1999 | WO1999001781A1 Radar plant and measurement technique for determination of the orientation and the depth of buried objects |
01/14/1999 | CA2294767A1 Method and system for rejecting interfering signals |
01/13/1999 | EP0891005A1 Array antenna with anti-jamming |
01/13/1999 | EP0891003A1 Method and apparatus for improving pattern bandwidth of shaped beam reflectarrays |
01/13/1999 | EP0890854A2 Integrated optical time delay unit |
01/13/1999 | CN1205137A Apparatus and method for providing wireless communication to sectorized coverage area |
01/12/1999 | US5859620 Multiband feedhorn mount assembly for ground satellite receiving antenna |
01/12/1999 | US5859611 Mixing and modulating methods and structures using nonlinear optical amplifiers |
01/07/1999 | WO1999000916A1 Telecommunication system |
01/07/1999 | WO1999000872A1 Digital interference suppression system for radio frequency interference cancellation |
01/07/1999 | WO1999000871A1 Antenna feed architecture for use with a continuous transverse stub antenna array |
01/07/1999 | WO1999000868A1 Telecommunication system antenna and method for transmitting and receiving using said antenna |
01/07/1999 | EP0889540A1 Delay line antenna array system |
01/07/1999 | EP0889539A2 Adaptive reflector constellation for space-based antennas |
01/07/1999 | CA2294626A1 Telecommunication system |
01/07/1999 | CA2290676A1 Telecommunication system antenna and method for transmitting and receiving using said antenna |
01/05/1999 | USH1773 Ultra-wideband active electronically scanned antenna |
01/05/1999 | US5856810 Low sidelobe multi-beam lossless feed networks for array antennas |
01/05/1999 | US5856805 Array antenna steering system |
01/05/1999 | US5856804 Method and intelligent digital beam forming system with improved signal quality communications |