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Compensation of relector antenna surface distortion using an array feedThe dimensional stability of the surface of a large reflector antenna is important when high gain or low sidelobe performance is desired. If the surface is distorted due to thermal or structural reasons, antenna performance can be improved through the use of an array feed. The design of the array feed and its relation to the surface distortion are examined. The sensitivity of antenna performance to changing surface parameters for fixed feed array geometries is also studied. This allows determination of the limits of usefulness for feed array compensation.
Document ID
19880009421
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Cherrette, A. R. (Illinois Univ. at Urbana-Champaign, Savoy., United States)
Acosta, R. J. (NASA Lewis Research Center Cleveland, OH., United States)
Lam, P. T. (Lockheed Missiles and Space Co. Sunnyvale, CA., United States)
Lee, S. W. (Illinois Univ. Urbana., United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1988
Subject Category
Communications And Radar
Report/Patent Number
NASA-TM-100286
NAS 1.15:100286
E-3929
Report Number: NASA-TM-100286
Report Number: NAS 1.15:100286
Report Number: E-3929
Accession Number
88N18805
Funding Number(s)
CONTRACT_GRANT: NAG3-419
PROJECT: RTOP 650-60-20
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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