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Synthesis of multiple shaped beam antenna patternsResults are presented of research into the problem of finding an excitation of a given antenna such that the desired radiation pattern is approximated to within acceptable limits. This is to be done in such a fashion that boundary conditions involving hardware limitations may be inserted into the problem. The intended application is synthesis of multiple shaped beam antennas. Since this is perhaps the most difficult synthesis problem an antenna engineer is likely to encounter, the approach taken was to include as a by-product capability for synthesizing simpler patterns. The synthesis technique has been almost totally computerized. The class of antennas which may be synthesized with the computer program are those which may be represented as planar (continuous or discrete) current distributions. The technique is not limited in this sense and could indeed by extended to include, for example, the synthesis of conformal arrays or current distributions on the surface of reflectors. The antenna types which the program is set up to synthesize are: line source, rectangular aperture, circular aperture, linear array, rectangular array, and arbitrary planar array.
Document ID
19740011680
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Stutzman, W. L. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Coffey, E. L. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Date Acquired
September 3, 2013
Publication Date
August 31, 1973
Subject Category
Communications
Report/Patent Number
NASA-CR-138982
Accession Number
74N19793
Funding Number(s)
CONTRACT_GRANT: NGR-47-004-103
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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