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