Patents
Patents for H01Q 21 - Aerial arrays or systems (25,127)
12/1992
12/22/1992US5173706 Radar processor with range sidelobe reduction following doppler filtering
12/21/1992WO1993000724A1 Active integrated microstrip antenna
12/21/1992CA2089894A1 Active integrated microstrip antenna
12/16/1992EP0518615A2 Wave guide to microstrip line mode transition apparatus
12/16/1992EP0518271A1 Elemental microwave antenna with two polarisations
12/16/1992EP0517976A1 Pulse radar
12/15/1992US5172129 Antenna with circular polarization for antenna array
12/15/1992US5172128 Antenna with circular polarization, notably for antenna array
12/15/1992US5172127 Waveguide antenna having a plurality of broad-side slots provided with a spatial filter
12/15/1992CA2071253A1 Device which improves the efficiency of a radiating system by means of parasite elements set on the ground plane
12/15/1992CA1311555C Microwave antenna
12/11/1992CA2070705A1 Dual polarization elementary microwave antenna
12/09/1992EP0516981A1 A receiving device
12/08/1992US5170174 Patch-excited non-inclined radiating slot waveguide
12/02/1992EP0516525A1 Slot antenna having two nonparallel elements
12/02/1992EP0516440A1 Microstrip antenna
12/01/1992US5168472 Dual-frequency receiving array using randomized element positions
11/1992
11/26/1992WO1992021162A1 System for maintaining polarization and signal-to-noise levels in received frequency reuse communications
11/26/1992WO1992021160A1 Aerial arrangement
11/25/1992EP0515192A1 Notched nested cup multi-frequency band antenna
11/25/1992CN2123130U Four-unit omnibearing active all-channel aerial
11/24/1992US5166693 Mobile antenna system
11/24/1992US5166690 Array beamformer using unequal power couplers for plural beams
11/19/1992EP0513856A2 Use of a transmit signal amplifying apparatus, transmit subsystem and method for amplifying transmit signals
11/19/1992DE4116232A1 Antennenanordnung Antenna array
11/17/1992US5164738 Wideband dual-polarized multi-mode antenna
11/17/1992US5164735 Optical implementation of a space fed antenna
11/11/1992EP0512876A1 Circular polarized antenna
11/11/1992EP0512487A1 Antenna with shaped lobe and high gain
11/10/1992US5163176 All weather tactical strike system (AWTSS) and method of operation
11/10/1992US5162804 Amplitude distributed scanning switch system
11/10/1992US5162803 Beamforming structure for modular phased array antennas
11/07/1992CA2067932A1 High gain shaped lobe antenna
11/04/1992CN2121083U Pocket full frequency channel tv. indoor antenna
11/03/1992US5160936 Multiband shared aperture array antenna system
11/03/1992CA2067510A1 Receiving device
11/03/1992CA1309769C Dual polarization electromagnetic power reception and conversion system
10/1992
10/29/1992WO1992019021A1 Implementation of multiple apertures through antenna interleaving and splitting
10/29/1992DE4213560A1 Ebene antenne Antenna plane
10/28/1992CN1018875B Microwave antenna structure
10/27/1992CA1309491C Microwave plate antenna in particular for doppler radar
10/21/1992EP0509842A2 Radar processor with range sidelobe reduction following doppler filtering
10/21/1992EP0509214A2 High-efficiency bi-directional spatial power combiner amplifier
10/20/1992US5157404 Phased arrays
10/15/1992WO1992017916A1 Array antenna for receiving communication signal
10/15/1992WO1992017915A1 Omnidirectionnal printed cylindrical antenna and marine radar transponder using such antennas
10/14/1992EP0508877A1 Method for reduction of side lobes in a radiation pattern of an active antenna array and antenna using the method
10/14/1992EP0253877B1 Aerial systems
10/13/1992US5155495 Radio antennas
10/13/1992CA2062625A1 Method for reducing the secondary lobes of an active array antenna radiation pattern and antenna using said method
10/07/1992EP0507688A1 Architecture of a space based payload
10/07/1992EP0507307A2 Broadband circular polarization satellite antenna
10/06/1992US5153602 Antenna with symmetrical
10/06/1992US5153600 Multiple-frequency stacked microstrip antenna
10/06/1992CA2062255A1 Broadband circular polarization satellite antenna
09/1992
09/30/1992EP0506527A1 Device and method for testing an array antenna during operation
09/30/1992EP0506061A1 Broadband continuously flared notch phased-array radiating element with controlled return loss contour
09/30/1992EP0505391A1 Comb generator, device and process for the calibration of radiated-emission test sites.
09/30/1992CN1018495B C-band micro-band antenna for satellite ground receiving station
09/29/1992US5152010 Highly directive radio receiver employing relatively small antennas
09/29/1992US5151706 Apparatus for electronically controlling the radiation pattern of an antenna having one or more beams of variable width and/or direction
09/29/1992CA2063147A1 Broadband continuously flared notch phase-array radiating element with controlled return loss contour
09/27/1992CA2063764A1 Method and device for testing a multisource antenna in operation
09/26/1992WO1992016982A1 Flat slot array
09/26/1992CA2106998A1 Planar slot antenna grid
09/23/1992EP0504842A1 Array antenna
09/22/1992CA1307842C Dual polarization microstrip array antenna
09/17/1992WO1992016048A1 T/r module with error correction
09/16/1992CN2116283U Telecontrol steering tv antenna
09/15/1992US5148183 Four-way antenna
09/09/1992EP0502818A1 Planar antenna
09/09/1992EP0502019A1 Improved microcell system for cellular telephone systems
09/08/1992US5146233 Rotating antenna with dipoles for hf waves
09/08/1992US5146230 Electromagnetic beam system with switchable active transmit/receive modules
09/02/1992EP0501314A1 Modular distributed antenna system
09/02/1992EP0501224A1 Waveguide slot antenna
09/02/1992EP0500654A1 Zoned microcell with sector scanning for cellular telephone systems
09/01/1992US5144327 Source of microwave radiation for an electronic sweeping antenna which absorbs reflected energy
09/01/1992US5144322 Large-aperture sparse array detector system for multiple emitter location
09/01/1992US5144318 Apparatus and method for navigating vehicle using GPS
09/01/1992CA1307045C Three terminal remotely controlled spdt antenna switch
08/1992
08/25/1992US5142698 Microwave integrated apparatus including antenna pattern for satellite broadcasting receiver
08/24/1992CA2061627A1 Slotted waveguide array
08/23/1992WO1992015179A1 Manifold antenna structure for reducing reuse factors
08/18/1992US5140336 Non-resonant antenna for wind profilers
08/11/1992US5138324 Device to measure the elevation angle for a radar equipped with a double curvature reflective type antenna
08/06/1992WO1992013372A1 Broadband antenna
08/06/1992DE4102846A1 Planar microwave aerial for satellite TV reception - has single feed mains radiation element structure in individual aerial housing
08/05/1992EP0497702A1 Radiating element structure for a plate antenna
08/05/1992EP0497652A1 Device for the electronic control of the radiation pattern of a single or multi beam antenna with variable direction and/or width
08/05/1992EP0497249A1 Array antenna, particularly for space application
08/05/1992EP0497196A2 Antenna with multiple elements
08/05/1992EP0497181A1 Waveguide transition for flat plate antenna
08/05/1992EP0288497B1 Array beam position control using compound slots
08/05/1992CN2112209U Omnidirectional tv antenna
08/04/1992US5136304 Electronically tunable phased array element
08/04/1992US5136271 Microwave integrated circuit mountings
07/1992
07/31/1992CA2059364A1 Waveguide transition for flat plate antenna
07/29/1992CN2111569U Full frequency channel tv receiving antenna
07/28/1992US5134392 Keyless entry system for locking and unlocking a vehicular lock device by a pocket portable radio signal transmitter and antenna arrangement therefor