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This paper describes a synthesis method of uniformly excited unequally spaced planar array with maximum beam collection efficiency (BCE) based on Chaotic Particle Swarm Optimization (CPSO) algorithm. And here the multiple optimization constrains include the number of array elements, the aperture, the minimum element spacing, and the maximum sidelobe level (SLL) outside the receiving region. Through this method, feeding network of the array becomes simple and compact. Effectiveness of the proposed method is validated by comparing the simulation results obtained in this paper to those reported in the state-of-the-art literature.Index Terms-Antenna arrays, microwave power transmission, chaotic particle swarm optimization, solar power satellite.

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