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Improved swarm intelligence based optimal design of concentric circular antenna array

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3 Author(s)
Mandal, D. ; Electron. & Commun. Eng. Dept., Nat. Inst. of Technol. Durgapur, Durgapur, India ; Ghoshal, S.P. ; Bhattacharjee, A.K.

In this paper the maximum sidelobe level (SLL) reductions for various designs without and with central element feeding in three-ring concentric circular antenna arrays (CCAA) are examined using an improved particle swarm optimization algorithm (IPSO) to finally determine the global optimal three-ring CCAA design. Real coded Genetic Algorithm is also employed for comparative optimization but it proves to be suboptimal. 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 with global minimum SLL (-18.40 dB) determined by IPSO.

Published in:

Applied Electromagnetics Conference (AEMC), 2009

Date of Conference:

14-16 Dec. 2009

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