Design of Concentric Circular Antenna Array with Central Element Feeding Using Particle Swarm Optimization with Constriction Factor and Inertia Weight Approach and Evolutionary Programing Technique

作者：Mandal Durbadal^*; Ghoshal Sakti Prasad; Bhattacharjee Anup Kumar

来源：Journal of Infrared Millimeter and Terahertz Waves, 2010, 31(6): 667-680.

DOI：10.1007/s10762-010-9629-9

• Concentric circular antenna array
• Non-uniform excitation
• Sidelobe level
• Standard particle swarm optimization
• Particle swarm optimization with constriction factor and inertia weight approach
• Evolutionary programming
• First null beamwidth

In this paper the maximum sidelobe level (SLL) reductions without and with central element feeding in various designs of three-ring concentric circular antenna arrays (CCAA) are examined using a real-coded Evolutionary Programming (EP) to finally determine the global optimal three-ring CCAA design. Standard real-coded Particle Swarm Optimization (PSO) and real-coded Particle Swarm Optimization with Constriction Factor and Inertia Weight Approach (PSOCFIWA) are also employed for comparative optimization but both prove to be suboptimal. This paper assumes non-uniform excitation weights and uniform spacing of excitation elements in each three-ring CCAA design. Among the various CCAA designs, the design containing central element and 4, 6 and 8 elements in three successive concentric rings proves to be such global optimal design set with global minimum SLL (-39.66 dB) as determined by Evolutionary Programming.

• 出版日期2010-6