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Antenna beamforming using optical processingThis work concerns itself with the analytical investigation into the feasibility of optical processor based beamforming for microwave array antennas. The primary focus is on systems utilizing the 20 and 30 GHz communications band and a transmit configuration exclusively to serve this band. A mathematical model is developed for computation of candidate design configurations. The model is capable of determination of the necessary design parameters required for both spatial aspects of the microwave footprint (beam) formation as well as transmitted signal quality. Computed example beams transmitted from geosynchronous orbit are presented to demonstrate network capabilities. A comprehensive device/component survey is also conducted in parallel to determine the feasibility of breadboarding a transmit processor. Recommendations are made for the configuration of such a processor and the components which would comprise such a network.
Document ID
19900001894
Document Type
Contractor Report (CR)
Authors
Anderson, L. P., Jr. (Hughes Aircraft Co. El Segundo, CA, United States)
Boldissar, F. (Hughes Aircraft Co. El Segundo, CA, United States)
Chang, D. C. D. (Hughes Aircraft Co. El Segundo, CA, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1987
Subject Category
COMMUNICATIONS AND RADAR
Report/Patent Number
NAS 1.26:180844
NASA-CR-180844
Funding Number(s)
CONTRACT_GRANT: NAS3-24889
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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NameType 19900001894.pdf STI