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