Patents
Patents for H01Q 21 - Aerial arrays or systems (25,127)
04/1996
04/30/1996US5512911 Microwave integrated tuned detector
04/30/1996US5512910 Microstrip antenna device having three resonance frequencies
04/30/1996US5512906 Clustered phased array antenna
04/24/1996EP0708490A1 Antenna having a waveguide structure and method of its manufacture
04/24/1996EP0707773A1 Point-to-multipoint cellular television transmission system
04/24/1996EP0707762A1 Mobile radio aerial installation
04/24/1996EP0474788B1 Acoustically coupled antenna
04/23/1996US5510803 Dual-polarization planar antenna
04/21/1996CA2133926A1 Sparse array structures
04/18/1996DE4436975A1 Electronic object monitoring installation
04/17/1996EP0707220A2 Radar module and radar system
04/16/1996US5508710 Conformal multifunction shared-aperture antenna
04/10/1996EP0645030A4 Portable data processor which selectively activates and deactivates internal modular units and application processor to conserve power.
04/09/1996US5506592 Multi-octave, low profile, full instantaneous azimuthal field of view direction finding antenna
04/09/1996US5506591 Television broadcast antenna for broadcasting elliptically polarized signals
04/09/1996US5506589 Monopulse array system with air-stripline multi-port network
04/04/1996WO1996010277A1 Planar high gain microwave antenna
04/04/1996WO1996010276A1 Ring microstrip antenna array
04/04/1996WO1996009941A1 Concealed mobile communications system
04/04/1996DE4435344A1 Group antennae for hand-held mobile radio
04/03/1996EP0704929A2 Multiple beam antenna system for simultaneously receiving multiple satellite signals
04/03/1996EP0481048B1 Microstrip radiator for circular polarization free of welds and floating potentials
04/02/1996US5504746 Radio frequency local area network
04/02/1996US5504495 Field convertible NTSC/HDTV broadcast antennas
04/02/1996US5504493 Active transmit phased array antenna with amplitude taper
03/1996
03/28/1996DE19535350A1 Radar transponder Radar transponder
03/27/1996EP0703638A1 Method and device for enlragement of the radiation diagram for an active antenna
03/26/1996US5502454 Electrical conducting sheel structure for coaxial collinear array antenna
03/26/1996US5502453 Planar antenna having polarizer for converting linear polarized waves into circular polarized waves
03/21/1996WO1996008877A2 Hitless ultra small aperture terminal satellite communication network
03/20/1996WO1996009662A1 Continuous transverse stub element devices and methods of making same
03/20/1996EP0702424A1 Antenna feed and beamforming network
03/20/1996CN1119057A Dual distributed antenna system
03/20/1996CN1118880A Radio frequency identification tag
03/14/1996WO1996007938A1 Radio frequency identification tag
03/14/1996DE4435609C1 Adaptive polarisation conversion system for electromagnetic waves
03/13/1996CN1118636A Antenna system
03/12/1996US5499035 Phased array antenna aperture and method
03/12/1996US5499033 Polarization diversity antenna
03/12/1996US5499029 Method for determining the presence of an object
03/10/1996CA2153440A1 Radio frequency identification tag
03/06/1996EP0700115A1 Stripline antenna
03/06/1996EP0394489B1 Array antenna and a feeder device therefor
03/05/1996US5497166 Dual frequency batwing antenna
03/05/1996CA2037911C Microstrip antenna system
03/03/1996CA2156895A1 Stripline antenna
03/02/1996CA2157139A1 Multiple beam antenna system for simultaneously receiving multiple satellite signals
02/1996
02/28/1996EP0698972A1 Antenna for multipath satellite communication links
02/28/1996EP0698939A1 Radar antenna array for wind profilers
02/28/1996EP0698938A2 Antenna apparatus and information transmitting system
02/27/1996US5495262 Molded plastic microwave antenna
02/27/1996US5495259 Compact parametric antenna
02/27/1996US5495258 Multiple beam antenna system for simultaneously receiving multiple satellite signals
02/27/1996US5495255 FM radar system
02/24/1996CA2151860A1 Antenna for multipath satellite communication links
02/21/1996EP0697141A1 Slot array antennas
02/20/1996US5493307 Sidelobe canceler
02/20/1996US5493305 Small manufacturable array lattice layers
02/15/1996WO1996004730A1 Hitless ultra small aperture terminal satellite communication network
02/14/1996CN2220124Y Wide frequency band omnidirectional antenna for TV set
02/14/1996CN1116779A Bidirectional printed antenna
02/07/1996EP0580590B1 Aerial arrangement
02/06/1996US5489913 For use with signals at vhf and uhf
01/1996
01/31/1996EP0694984A1 Antenna arrangement with an asymmetric ground distribution particularly for wireless telecommunications systems
01/30/1996US5488380 Packaging architecture for phased arrays
01/24/1996EP0693246A1 Transceiver algorithms of antenna arrays
01/23/1996US5486837 Compact microwave antenna suitable for printed-circuit fabrication
01/23/1996US5486835 Low cost telemetry receiving system
01/16/1996US5485631 Manifold antenna structure for reducing reuse factors
01/16/1996US5485167 Multi-frequency band phased-array antenna using multiple layered dipole arrays
01/11/1996WO1996000990A1 Antenna device and portable radio device
01/11/1996DE19523805A1 Microstrip antenna for microwave range
01/10/1996EP0691703A1 Communications antenna structure
01/10/1996CN2217266Y Back radiation type aerial
01/10/1996CN2217265Y Broad band combination aerial placed on air plane
01/09/1996US5483693 Combining antenna element signals
01/04/1996WO1996000401A1 Electronic viewing aid
01/03/1996EP0690522A2 Flat antenna low-noise block down converter capacitively coupled to feed network
01/02/1996US5481272 Circularly polarized microcell antenna
12/1995
12/29/1995CA2149186A1 Flat antenna low-noise block down converter capacitively coupled to feed network
12/27/1995EP0689301A1 System of omnidirectional antennae having angular and polarisation diversity
12/27/1995EP0689264A2 Multiple band folding antenna
12/27/1995EP0688482A1 A cellular/satellite communications system with improved frequency re-use
12/21/1995WO1995031070A3 Point-to-multipoint cellular television transmission system
12/21/1995DE4421191A1 Direction finding method for determining azimuthal direction of incidence of EM waves
12/20/1995EP0688040A2 Bidirectional printed antenna
12/19/1995US5477231 Microstrip antenna device, particularly for a UHF receiver
12/19/1995CA2074657C Microwave antenna array
12/15/1995CA2066140A1 Radar antenna of the omnidirectional azimuth pointing and computational beamforming fixed array type
12/14/1995WO1995034104A1 Planar antenna array and associated microstrip radiating element
12/14/1995WO1995034102A1 Microstrip antenna array
12/14/1995CA2191956A1 Microstrip antenna array
12/13/1995EP0687031A2 Base station antenna arrangement
12/13/1995EP0686313A1 Antenna system
12/12/1995US5475394 Waveguide transition for flat plate antenna
12/06/1995EP0685945A1 Antenna apparatus having antenna elements for different frequencies
12/06/1995EP0685901A2 A feed structure for use in a wireless communication system
12/05/1995US5473334 Antenna for transmitting rf energy
12/02/1995CA2147399A1 Feed structure for use in a wireless communication system
11/1995
11/29/1995EP0684704A2 A diversity antenna for a wrist telephone