Abstract

A pattern synthesis method based on the genetic algorithm and convex algorithm is presented for featuring a minimum side-lobe level of the planar thinned antenna array. The genetic algorithm focuses on the selection of the planar array elements excitation to accomplish the array thinning. The convex optimization is applied to assign the weight coefficient of array elements for the lower side-lobe level. In this way, the hybrid algorithm ensures the global optimal solution and improves the search process efficiency. The computed results indicate that the average value of side lobe level for the thinned sub-array optimized by hybrid algorithm is lower to −27 dB. Meanwhile, the processing time for the whole elements of the array will be shortened.

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