Abstract
planar array antenna synthesis is one of the most popular optimization problems in electromagnetic and antenna community. This paper introduces a recently algorithm, known as the Gravitational Search Algorithm (GSA), to the pattern synthesis of planar antenna array for imposing deeper nulls in the interfering direction and desired side lobe level (SLL) by position-only optimization. The results of GSA are validated by comparing with results obtained using PSO algorithm as reported in literature for planar array. The numerical results such as radiation pattern show the effectiveness of the proposed method.
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