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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10/19/1976 | US3987451 Beam type planar array antenna system |
10/19/1976 | US3987444 Interference rejection system for multi-beam antenna having single control loop |
10/05/1976 | US3984840 Bootlace lens having two plane surfaces |
09/28/1976 | US3983561 High frequency wave radiation system producing a rotating beam defining a predetermined geometrical pattern |
09/21/1976 | US3982247 Antenna spring counterweight |
09/21/1976 | US3982245 Sidelobe canceller with programmable correlation signal weighting |
09/14/1976 | US3981016 Antenna apparatus for detecting an optimum directivity |
09/14/1976 | US3981014 Interference rejection system for multi-beam antenna |
09/07/1976 | US3979755 Rotating lens antenna seeker-head |
09/07/1976 | US3979754 Radio frequency array antenna employing stacked parallel plate lenses |
09/07/1976 | US3979750 Optical pump power distribution feed |
08/31/1976 | US3978484 Waveguide-tuned phased array antenna |
08/31/1976 | US3978483 Stable base band adaptive loop |
08/31/1976 | US3978482 Dynamically focused thinned array |
08/10/1976 | US3974462 Stripline load for airborne antenna system |
07/20/1976 | US3971022 Phased-array antenna employing an electrically controlled lens |
07/13/1976 | US3969729 Network-fed phased array antenna system with intrinsic RF phase shift capability |
07/13/1976 | US3969693 Passive microwave power distribution systems |
06/29/1976 | US3967279 Self-phasing array with a time-shared processor |
06/15/1976 | US3964069 Constant beamwidth antenna |
06/15/1976 | US3964066 Electronic scanned cylindrical-array antenna using network approach for reduced system complexity |
06/15/1976 | US3964065 Steerable antenna null combiner system |
05/25/1976 | US3959794 Semiconductor waveguide antenna with diode control for scanning |
05/18/1976 | US3958247 Rf power coupling network employing a parallel plate transmission line |
05/18/1976 | US3958246 Circular retrodirective array |
05/04/1976 | US3955201 Reflectivity |
04/27/1976 | US3953857 Airborne multi-mode radiating and receiving system |
04/27/1976 | US3953853 Passive microwave power distribution systems |
04/27/1976 | US3953852 Wide bandwidth phase scanning with simple controls |
04/27/1976 | US3953131 Opto-electronic antenna system for lasers |
04/27/1976 | US3952984 Mid-tower rotary antenna mount |
04/20/1976 | US3952217 Drive for scanning mirror |
04/13/1976 | US3950753 Stepped cardioid bearing system |
04/06/1976 | US3949407 Direct fed spiral antenna |
04/06/1976 | US3949404 Highly efficient antenna system using a corrugated horn and scanning hyperbolic reflector |
03/16/1976 | US3945015 Satellite tracking antenna having a dish moveably supported at three points |
03/16/1976 | US3945009 Antennae with linear aperture |
03/16/1976 | US3945007 Radar systems |
03/09/1976 | US3943523 Airborne multi-mode radiating and receiving system |
03/09/1976 | US3943511 Spike enable circuit |
02/24/1976 | US3940770 Cylindrical array antenna with radial line power divider |
02/17/1976 | US3939480 Level and cross-level stabilization technique for search radar antennas |
02/10/1976 | US3938162 Variable beamwidth antenna |
02/10/1976 | US3938160 Phased array antenna with array elements coupled to form a multiplicity of overlapped sub-arrays |
02/10/1976 | US3938154 Modified sidelobe canceller system |
02/10/1976 | US3938153 Sidelobe canceller system |
02/10/1976 | US3938151 Passive radar decoy having a large cross section |
01/27/1976 | US3935576 Broadband beacon antenna system |
01/06/1976 | US3931624 Antenna array for aircraft guidance system |