Synthesis of an unequally spaced array using DEGL algorithm

An unequally spaced linear array used in retrodirective array is proposed in this paper. The synthesis is carried out using Differential Evolution with Global and Local neighborhoods (DEGL) algorithm. A 16-element array with two layer antenna element is implemented to validate the numerical results. The simulation results show that the maximum sidelobe level is basically below −20 dB in the range of 4.4 GHz-5 GHz.

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