| 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) |
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| 07/11/1989 | US4847860 Phase-control system for telecommunications signals received by an adaptive antenna |
| 07/11/1989 | CA1257339A1 Antenna diversity reception system for eliminating reception interferences |
| 07/05/1989 | EP0322809A2 Electronically steerable antenna |
| 07/04/1989 | US4845510 Reflector surface adjustment structure |
| 07/04/1989 | US4845506 Antenna system |
| 06/28/1989 | EP0322005A1 Radioelectrical sensor for creating a radioelectrical map of a site |
| 06/27/1989 | US4843402 Azimuth array of rotory antennas with selectable lobe patterns |
| 06/27/1989 | US4843397 Distributed-array radar system comprising an array of interconnected elementary satellites |
| 06/21/1989 | EP0320553A1 Adaptive antenna systems |
| 06/20/1989 | US4841309 Antenna with motorized positioner |
| 06/20/1989 | US4841303 Low cost method and system for automatically steering a mobile directional antenna |
| 06/14/1989 | EP0320306A2 Phased-array radar |
| 06/14/1989 | EP0319782A2 Radio wave receiver with several antennas |
| 06/13/1989 | US4839894 Contiguous channel multiplexer/demultiplexer |
| 06/13/1989 | US4839659 Microstrip phase scan antenna array |
| 06/07/1989 | EP0229179B1 Drive system for a rotating tilting mirror |
| 06/06/1989 | US4837583 Device for adjusting the polarization of an antenna and a method for the practical application of said device |
| 06/06/1989 | US4837577 Method for stabilizing an electronically steered monopulse antenna |
| 05/23/1989 | US4832433 Fiber-optic feed network using series/parallel connected light emitting opto-electronic components |
| 05/23/1989 | US4832425 Rotation system for a rotating, tilting reflector |
| 05/10/1989 | EP0315064A2 Waveguide matrix including in-plane crossover |
| 05/10/1989 | EP0314931A2 Method and apparatus for transmitting a plurality of control signals in antenna systems |
| 05/10/1989 | EP0314930A2 Method and apparatus for transmitting control signals to actuators in television satellite receivers |
| 05/10/1989 | EP0134810B1 Apparatus and method for suppressing side lobe response in a digitally sampled system |
| 05/09/1989 | US4829271 Coaxial RF switch matrix |
| 05/09/1989 | CA1253959A1 Phased array antenna feed |
| 05/03/1989 | EP0313623A1 Microwave lens and array antenna |
| 05/03/1989 | CN2037112U Driving system for satellite ground station |
| 05/02/1989 | US4827268 Beam-forming network |
| 05/02/1989 | CA1253559A1 Bi-axial supporting arrangement |
| 04/26/1989 | EP0313058A2 Coaxial transmission-line matrix including in-plane crossover |
| 04/26/1989 | EP0313057A2 Dual mode phased array antenna system |
| 04/26/1989 | CN2036705U Station finder for tv antenna |
| 04/25/1989 | US4825219 Slot antenna in circular waveguide |
| 04/25/1989 | US4825218 Reflector antenna for telecommunications |
| 04/25/1989 | US4825216 High efficiency optical limited scan antenna |
| 04/25/1989 | US4825172 Use in a microwave antenna system |
| 04/19/1989 | EP0311928A2 Antenna array |
| 04/19/1989 | EP0311919A2 Satellite communications system employing frequency reuse |
| 04/19/1989 | EP0311872A1 Two motor redundant drive mechanism |
| 04/18/1989 | US4823136 Transmit-receive means for phased-array active antenna system using rf redundancy |
| 04/18/1989 | US4822149 Prismatic ferroelectric beam steerer |
| 04/18/1989 | US4821596 Rotator |
| 04/12/1989 | CN2035923U Deflecting apparatus for tv antenna |
| 04/11/1989 | US4821047 Mount for satellite tracking devices |
| 04/11/1989 | US4821045 Antenna pointing device capable of scanning in two orthogonal directions |
| 04/11/1989 | US4821037 Wideband adaptive array using the chirp transform |
| 04/04/1989 | US4819227 Satellite communications system employing frequency reuse |
| 04/04/1989 | US4819002 Device for orienting and angularly positioning the axis of rotation of a rotatable load |
| 04/04/1989 | US4819000 Scanning antenna having amplitude and phase distribution diversity |
| 04/04/1989 | US4818963 Dielectric waveguide phase shifter |
| 04/04/1989 | CA1252195A1 Electronic tracking system for microwave antennas |
| 04/04/1989 | CA1252194A1 Device and method for automatically tracking satellite by receiving antenna |
| 03/29/1989 | EP0308830A2 Antenna system |
| 03/28/1989 | US4815339 Antenna shaft positioning device |
| 03/23/1989 | WO1989002662A1 Microwave circuit module, such as an antenna, and method of making same |
| 03/23/1989 | WO1988010523A3 Deterministic thinned aperture phased antenna array |
| 03/22/1989 | EP0307470A1 Equal power amplifier system for active phase array antenna and method of arranging same |
| 03/22/1989 | EP0307445A1 Plural level beam-forming network. |
| 03/21/1989 | US4814781 Satellite dish drive mechanism |
| 03/21/1989 | US4814779 Radar system with auxiliary scanning for more dwell time on target |
| 03/21/1989 | US4814778 Large scan antenna with fixed main reflector and fixed feed, particularly for use at ultrahigh frequencies, carried on board a satellite and a satellite equipped with such an antenna |
| 03/21/1989 | US4814775 Reconfigurable beam-forming network that provides in-phase power to each region |
| 03/21/1989 | US4814774 Optically controlled phased array system and method |
| 03/21/1989 | US4814773 Fiber optic feed network for radar |
| 03/21/1989 | US4813766 Optical time delay apparatus |
| 03/15/1989 | EP0307351A1 Microwave horn antenna |
| 03/14/1989 | US4812788 Waveguide matrix including in-plane crossover |
| 03/07/1989 | USH605 Multi-element adaptive antenna array |
| 03/07/1989 | US4811032 Method for monitoring and controlling an antenna selector and antenna selector for carrying out the method |
| 03/07/1989 | US4811027 Broad-band directional antenna |
| 03/07/1989 | US4811023 Antenna performance evaluation method and apparatus |
| 03/07/1989 | US4811022 Scanning antenna having phase center diversity |
| 03/07/1989 | US4810982 Coaxial transmission-line matrix including in-plane crossover |
| 03/07/1989 | CA1250911A1 Spread spectrum adaptive antenna interference canceller |
| 03/01/1989 | EP0305099A2 Beam steering |
| 03/01/1989 | EP0304656A1 Directional antenna for relay systems |
| 03/01/1989 | CN1031450A Tv receiving antenna with automatically oriented amplification |
| 02/28/1989 | US4809011 Electronically steerable antenna apparatus |
| 02/23/1989 | WO1989001710A1 Microwave radiometer |
| 02/23/1989 | WO1989001708A1 Method and structure for reflectror surface adjustment |
| 02/21/1989 | US4806945 Receiving head end for polarized microwaves, parabolic aerial and receiving station equipped with such a receiving head end |
| 02/21/1989 | US4806944 Switchable matching network for an element of a steerable antenna array |
| 02/21/1989 | US4806939 Optimization of convergence of sequential decorrelator |
| 02/21/1989 | US4806938 Integrated self-adaptive array repeater and electronically steered directional transponder |
| 02/09/1989 | WO1989001246A1 Phase shifting element, antenna comprising phase shifting elements and method of steering an antenna |
| 02/08/1989 | CN2032363U Antenna change direction device |
| 02/07/1989 | US4803447 Three terminal remotely controlled SPDT antenna switch |
| 01/31/1989 | US4801940 Satellite seeking system for earth-station antennas for TVRO systems |
| 01/31/1989 | US4801239 Arm device |
| 01/26/1989 | WO1988007786A3 Equal power amplifier system for active phase array antenna and method of arranging same |
| 01/26/1989 | DE3723179A1 Antenna array |
| 01/25/1989 | EP0300024A1 Slot antenna in circular waveguide. |
| 01/25/1989 | CN2031575U Automatic orient antenna |
| 01/24/1989 | US4800390 Adaptive antenna arrays for frequency hopped systems |
| 01/18/1989 | CN1030500A Portable antenna device for satellite communucation |
| 01/17/1989 | US4799065 Reconfigurable beam antenna |
| 01/17/1989 | US4799064 Gyratory parabolic antenna driving device |
| 01/11/1989 | EP0298098A1 Ultra high-speed light activated microwave switch/modulator using photoreactive effect. |
| 01/10/1989 | US4797950 Multipath reduction system |