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A conjugate gradient based algorithm to minimize the peak sidelobe level of planar arrays with element failures

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1 Author(s)
Peters, T.J. ; Electron. Res. Lab., Aerosp. Corp., El Segundo, CA, USA

An attempt is made to determine the extent to which the sidelobe increase caused by element failures in a space-based antenna array system can be reduced by changing the excitation distribution. The algorithm presented provides a very stable minimization scheme. This is important because the function to minimize will always change, depending on the element failure pattern. The random element failures produce a thinned-array-type pattern with grating lobes but negligible beam broadening. Clustered element failures produce a general increase in sidelobe level and beamwidth.<>

Published in:

Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.

Date of Conference:

7-11 May 1990