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Abstract
A genetic algorithm (GA) is used to obtain pattern nulling and main beam scanning of the array feed parabolic reflector. Unlike conventional GA using a random initial population, in this study, one of the initial individuals is designated as conjugate field matching (CFM) weight vector. The implemented GA algorithm is tested for both phase-amplitude array and phase-only array feed for parabolic reflectors. Various results are presented to show the performance of the algorithm.