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An optimal circular antenna array design considering the mutual coupling employing ant lion optimization

Published online by Cambridge University Press:  09 July 2020

Avishek Das Open the ORCID record for Avishek Das [Opens in a new window] ,
Durbadal Mandal  and
Rajib Kar
Avishek Das*
Affiliation:
Department of Electronics and Communication Engineering, HIT, Haldia, 721657, India
Durbadal Mandal
Affiliation:
Department of Electronics and Communication Engineering, NIT, Durgapur, 713209, India
Rajib Kar
Affiliation:
Department of Electronics and Communication Engineering, NIT, Durgapur, 713209, India
*
Author for correspondence: Avishek Das, E-mail: avishek.uit0408@gmail.com
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Abstract

This paper presents an efficient approach for the design of a non-uniform single ring circular antenna array (CAA) for the synthesis of the optimal far-field radiation pattern. A recently proposed meta-heuristic-based optimization technique known as ant lion optimization (ALO) is applied in this paper to determine the optimum set of current amplitude excitation weights and the inter-element distance among the array elements to reduce the side lobe level (SLL) and 3-dB beam width considering the mutual coupling effect. The results achieved by employing the ALO algorithm are compared with the uniform radiation pattern and with those of the recently reported literature containing equal sets of elements to prove the superiority of ALO algorithm. Three different design examples of 8, 10, and 12 elements CAA are presented, and their performances are compared to illustrate the capability of the ALO algorithm-based approach over those of the recently reported literature.

Keywords

3-dB beam widthant lion optimizationcircular antenna arraymutual couplingside lobe level
Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 2 , March 2021 , pp. 164 - 172
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Copyright
Copyright © Cambridge University Press and the European Microwave Association 2020

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