Shaping Large Adaptive Reflector Cassegrain configuration using feed-reflector

Abstract

Three shaping processes were conducted on the LAR system based on a diffraction synthesis technique, using Jacobi-Fourier series to represent the reflector surface. An efficiency of 78.5% was obtained by shaping all three reflectors. The final radiation patterns of each case were compared to those of Grasp8w, and showed an excellent agreement.