Thinned Concentric Circular Array Antennas Synthesis using Improved Particle Swarm Optimization
نویسندگان
چکیده
Circular antenna array has gained immense popularity in the field of communications nowadays. It has proved to be a better alternative over other types of antenna array configuration due to its all-azimuth scan capability, and a beam pattern which can be kept invariant. This paper is basically concerned with the thinning of a large multiple concentric circular ring arrays of uniformly excited isotropic antennas based on Improved Particle Swarm Optimization (IPSO) method. In this paper a 9 ringed Concentric Circular Antenna Array (CCAA) with central element feeding is considered. The computational results show that the number of antenna array elements can be brought down from 279 to 147 with simultaneous reduction in Side Lobe Level of about 20 dB with a fixed half power beamwidth. KeywordsConcentric Circular Antenna Arrays; Particle Swarm Optimization; Thinning; Sidelobe Level
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