Patents
Sitemap › H01 - Basic electric elements › H01Q - Aerials › H01Q 21 - Aerial arrays or systems
Patents for H01Q 21 - Aerial arrays or systems (25,127)
09/1999
09/23/1999WO1999035706A3 Shaped directional antenna array for improved location information
09/23/1999WO1999035705A3 Electrically-controllable back-fed antenna
09/23/1999DE19806592A1 Mikrowellen-Bewegungssensor Microwave motion sensor
09/23/1999DE19709143A1 Microwave immersion sensor for measuring very different parameters, e.g. distance, fill level, moisture, material conc., density, etc., e.g. for measuring sol., emulsions or suspensions in industrial process measurement
09/22/1999EP0943164A1 Antenna system for enhancing the coverage area, range and reliability of wireless base stations
09/22/1999EP0943163A1 Vitreous antenna
09/22/1999EP0943104A1 Omnidirectional transponder
09/22/1999CN1229530A Wide-angle circular polarization antenna
09/21/1999US5955994 Microstrip antenna
09/21/1999US5955990 Linear interferometer antenna capable of making error-free azimuth and elevation angle measurements
09/16/1999WO1999046831A1 Wire detection system and method
09/15/1999EP0942489A1 Array antenna apparatus for use in spread spectrum communications with a particular interval between antenna elements
09/15/1999EP0942488A2 Antenna device and radio device comprising the same
09/15/1999EP0941559A1 Antenna and method of manufacture
09/15/1999EP0941558A1 Microwave antenna
09/15/1999CN1228891A Signal processing method utilizing eigenvector corresponding to maximum eigenvalue of autocorrelation matrix of received signals for antenna array system
09/15/1999CN1228879A Antenna device and method for portable radio equipment
09/14/1999US5952983 High isolation dual polarized antenna system using dipole radiating elements
09/14/1999US5952981 Antenna for reducing an effect of a radio wave blocking obstacle
09/14/1999US5952976 Helicopter furnished with a high-frequency radiocommunication system
09/14/1999US5952973 Planar antenna module
09/14/1999US5952971 Polarimetric dual band radiating element for synthetic aperture radar
09/14/1999US5952966 Antenna assembly
09/14/1999US5952964 Planar phased array antenna assembly
09/14/1999US5952956 Time domain radio transmission system
09/08/1999EP0940924A2 Mobile terminal equipment for satellite and land mobile radio communication
09/08/1999EP0939975A1 Flat antenna
09/08/1999CN1228202A 天线装置 The antenna device
09/08/1999CN1227979A Phase controller for use in waveguide phased array antenna
09/07/1999US5949377 Retractable, extendable and rotatable dual antenna system
09/06/1999CA2260579A1 Antenna system for millimeter wave length communication systems
09/03/1999CA2263820A1 Mobile communication terminal equipment and its waiting reception method
09/02/1999WO1999044307A2 Antenna-gain diversity
09/02/1999WO1999044297A2 Method and apparatus for a distributed base station antenna system
09/02/1999WO1999031755A3 Method and arrangement relating to antennas
09/01/1999EP0939452A2 Multiple beam phased array antenna and satellite communication system
09/01/1999EP0939451A1 Slot antenna
09/01/1999EP0938785A1 Dual-mode satellite/terrestrial mobile communication unit
09/01/1999CN2336482Y All channel TV receiving antenna
08/1999
08/31/1999US5945964 Multi-band antenna structure for a portable radio
08/31/1999US5945951 High isolation dual polarized antenna system with microstrip-fed aperture coupled patches
08/31/1999US5945938 RF identification transponder
08/31/1999US5945897 Compliant RF coaxial interconnect
08/26/1999WO1999043048A1 Cellular antennas for stratosphere coverage of multi-band annular earth pattern
08/26/1999WO1999043046A1 Geodesic slotted cylindrical antenna
08/26/1999WO1999043044A1 System and method for increasing the isolation characteristic of an antenna
08/26/1999WO1999043036A1 Phase shifter and scanning antenna
08/25/1999CA2262317A1 Thinned multiple beam phased array antenna
08/24/1999US5943017 Dual near-field focused antenna array
08/24/1999US5943015 Layered antenna
08/24/1999US5943012 Method and apparatus for exciting a television antenna using orthogonal modes
08/24/1999US5943011 Antenna array using simplified beam forming network
08/24/1999US5943007 Rotating mirror drum radiometer imaging system
08/24/1999CA2184972C Antenna apparatus, method of manufacturing same and method of designing same
08/24/1999CA2178382C Combined antenna apparatus and method for receiving and transmitting radio frequency signals
08/19/1999WO1999041804A1 Determining angles-of-arrival and polarization of rf signals
08/19/1999WO1999041803A1 Adaptive multifilar antenna
08/19/1999WO1999027606A3 Microstrip arrangement
08/18/1999EP0936470A2 Microwave motion sensor and use of such a motion sensor
08/18/1999EP0935823A1 Electronically scanned ferrite line source
08/18/1999CN1226344A Planer dual-frequency array antenna
08/18/1999CN1226093A Short-circuit microstrip antenna and device including that antenna
08/17/1999US5940742 Two-way paging system and apparatus
08/17/1999US5940048 Conical omni-directional coverage multibeam antenna
08/17/1999US5940044 45 degree polarization diversity antennas
08/17/1999US5940041 Slot antenna device and wireless apparatus employing the antenna device
08/17/1999US5940040 System for selecting between a whip antenna and a built-in antenna
08/17/1999US5940031 Transmit/receive module for planar active apertures
08/17/1999US5940030 Steerable phased-array antenna having series feed network
08/17/1999US5940011 Compact vehicle based rear and side obstacle detection system including multiple antennae
08/17/1999CA2030631C Array antenna with forced excitation
08/12/1999DE19840020A1 Wireless subscriber connection cable system with patch antenna
08/11/1999EP0935349A2 Satellite communication system
08/11/1999EP0934608A1 Antenna system for portable radiotelephone station
08/10/1999US5937336 Transmission/reception apparatus
08/10/1999US5937015 Interference mitigation by joint decoding of overlapped signals
08/10/1999US5936591 Multi-beam feeding apparatus
08/10/1999US5936590 Antenna system having a plurality of dipole antennas configured from one piece of material
08/10/1999US5936588 Reconfigurable multiple beam satellite phased array antenna
08/10/1999US5936580 Multi-sector antennae configuration having vertical and horizontal displaced antenna pairs
08/10/1999US5936579 Planar antenna array and microstrip radiating element for planar antenna array
08/10/1999US5936575 Apparatus and method for determining angles-of-arrival and polarization of incoming RF signals
08/10/1999CA2177191C Dual polarization common aperture array formed by a waveguide-fed planar slot array and a linear short backfire array
08/10/1999CA2177050C Dielectric antenna
08/10/1999CA2150041C Concrete penetrating imaging radar
08/10/1999CA2101159C Manifold antenna structure for reducing reuse factors
08/05/1999WO1999039403A1 Antenna device for dual frequency bands
08/05/1999DE19803762A1 Selective antenna contacting arrangement
08/05/1999DE19803521A1 Flat aerial for satellite controlled radio clock or wrist watch
08/04/1999EP0933832A2 Built-in antenna for radio communication terminals
08/04/1999EP0932916A1 Transmitter and receiver module for a phase controlled antenna
08/03/1999US5933123 Combined satellite and terrestrial antenna
08/03/1999US5933121 Antenna array for sensing signals on conductors
08/03/1999US5933115 Planar antenna with patch radiators for wide bandwidth
08/03/1999US5933113 Simultaneous multibeam and frequency active photonic array radar apparatus
08/03/1999US5933109 Multibeam radar system
07/1999
07/29/1999WO1999038227A1 Multifrequency antenna
07/29/1999WO1999023717A8 Digitally controlled monolithic microwave integrated circuits
07/28/1999EP0932220A2 Multi-filar helical antenna and portable radio
07/28/1999EP0611500B1 Satellite communication system
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