Optimal design of concentric hexagonal array antenna using Improved Particle Swarm Optimization technique

Authors

  • Rajesh Bera Department of Electronics and Communication Engineering, National Institute of Technology Durgapur
  • Durbadal Mandal Department of Electronics and Communication Engineering
  • Sakti Prasad Ghoshal Department of Electrical Engineering, National Institute of Technology Durgapur
  • Rajib Kar Department of Electronics and Communication Engineering

Keywords:

Thinned array, particle swarm optimization, improved particle swarm optimization, concentric hexagonal array, side lobe level

Abstract

In this paper, the optimal design of two-ring Concentric Hexagonal Array (CHA) of uniformly excited isotropic antennas which can generate directive beam with minimum relative Side Lobe Level (SLL) is described. The Improved Particle Swarm Optimization (IPSO) method, which represents a new approach for optimization problems in electromagnetics, is applied for the optimization process. To improve the radiation pattern with maximum SLL reduction, an optimum set of antenna parameters as excitation weights and ring spacing of the CHA are to be developed. Three design examples are presented that illustrate the effectiveness of the IPSO algorithm, and the optimization goal in each example is easily achieved. In the first example, optimal thinning of 24- element CHA with maximum SLL reduction is presented. In second and third examples, IPSO technique is used to determine an optimal set of non-uniformly excited array of 24 and 30 elements, respectively that provide a radiation pattern with maximum SLL reduction. Results clearly show the superiority of the IPSO over PSO to handle the proposed problem.

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Published

2015-01-01

How to Cite

Rajesh Bera, Durbadal Mandal, Sakti Prasad Ghoshal, & Rajib Kar. (2015). Optimal design of concentric hexagonal array antenna using Improved Particle Swarm Optimization technique. Journal of Network and Innovative Computing, 3, 10. Retrieved from https://cspub-jnic.org/index.php/jnic/article/view/62

Issue

Vol. 3 (2015)

Section

Original Article

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