Synthesis of Thinned Multiple Concentric Circular Ring Array Antennas using Particle Swarm Optimization

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Journal Article
Journal of Infrared, Millimeter and Terahertz Waves, 2009, July, 2009, 30 (7), pp. 709 - 716
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Abstract: In this paper, we propose an optimization method based on Particle Swarm Optimization (PSO) algorithm for thinning a large multiple concentric circular ring array of uniformly excited isotropic antennas and generate a pencil beam in the vertical plane with minimum relative side lobe level (SLL). The half-power beam width of the pattern is attempted to make equal to that of a fully populated array of same size and shape. The synthesis is performed with a standard particle swarm optimization technique as well as with an improved version of standard PSO. Simulation results of the proposed thinned array are compared with a fully populated array to illustrate the effectiveness of our proposed method.
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