LANCE LYNWOOD WEBB
Pilots at Bonnie Brae St, Hermosa Beach, CA

License number
California A2014926
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1558 Bonnie Brae St, Hermosa Beach, CA 90254

Professional information

Lance Webb Photo 1

Multi-Element True Time Delay Shifter For Microwave Beamsteering And Beamforming

US Patent:
5663736, Sep 2, 1997
Filed:
Dec 19, 1994
Appl. No.:
8/359268
Inventors:
Lance L. Webb - Hermosa Beach CA
John H. Hong - Moorpark CA
Assignee:
Rockwell International Corporation - Seal Beach CA
International Classification:
H01Q 322
US Classification:
342375
Abstract:
In a broad aspect the present invention comprises a multiple element, multi-throw electronic switch for a fiber optical cable network. The multiple element, multi-throw electronic switch includes a bulk media optical deflector angularly controllable by selectable electronic steering signals. At least one multiple element, multi-throw electronic switch is use to construct a true time delay shifter using rows of a plurality of columns of a plurality of beamsteering optical fiber delay lines, all with a specified antenna scanning coherence center. Distributed beamsteering is performed by selecting from the composite array, subarrays for which a common steering direction cosine can be applied to that subarray. The distributed beamforming is performed by combining elements beamsteered with a common antenna scanning coherence center from an electronically small core fibers with limited available modes into larger core multimode fibers. The distributed beamsteering and distributed beamforming is iterated until all antenna elements in the composite array have been beamsteered into an array with the identical specified antenna scanning coherence center.