Annals of Telecommunications

, Volume 74, Issue 11–12, pp 687–696 | Cite as

An optimal mutually coupled concentric circular antenna array synthesis using ant lion optimization

  • Avishek DasEmail author
  • D. Mandal
  • S. P. Ghoshal
  • R. Kar


This paper presents an accurate design approach for concentric circular antenna array (CCAA) synthesis to improve the far-field radiation characteristics using a meta-heuristic optimization technique called ant lion optimization (ALO). The far-field radiation pattern is improved with lower side lobe level (SLL) which is essential for the reduction of interference in the entire side lobe regions. The ALO algorithm is a recently proposed evolutionary technique which is applied to determine the optimal sets of current excitation weights and to find the optimal inter-element spacing between the array elements in the 3-ring structure of the CCAA design. In this context, the design examples of two 3-ring CCAAs, one having the set of (4, 6, 8) elements and the other having the set of (8, 10, 12) elements, with and without the centre element, are presented by optimizing the array parameters. The results obtained by using the ALO algorithm–based approach show considerable improvement of SLL with respect to that of the uniform array pattern and those of the methods reported in the recent literature.


Concentric circular antenna array Side lobe level Directivity Ant lion optimization Mutual coupling 


Funding information

Mr. Avishek Das has received Visvesvaraya Fellowship from MeitY, Govt. of India. Dr. D. Mandal received a project grant from the Science and Engineering Research Board (SERB), New Delhi, Government of India (project no. EEQ/2017/000519 dated 23 March 2018).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Institut Mines-Télécom and Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Electronics and Communication EngineeringNITDurgapurIndia
  2. 2.Department of Electrical EngineeringNITDurgapurIndia

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