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Application of genetic algorithm to design of sequentially rotated circularly polarised dual-feed microstrip patch antenna array

Lookup NU author(s): Dr Belal Aljibouri, Professor Bayan Sharif

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Abstract

A design procedure for a circularly polarised 2 × 2 patch antenna array is presented. The structure involves 22 design parameters with associated constraints, and a multi-objective genetic algorithm is developed to determine the parameter values. This approach removes the requirement for quarter-wave transformers associated with the conventional method, and achieves a more compact configuration. In addition, the proposed design reduces step discontinuities and hence reduces spurious radiation. The related constraints were the lengths, characteristic impedance values of the array feed network and the phase-shifting between the radiating elements of the array. The return loss and axial ratio for a 5.8 GHz array were investigated and good agreement was obtained between calculated, simulated, and measured measurements. © 2008 The Institution of Engineering and Technology.

Publication metadata

Author(s): Aljibouri B, Sambell AJ, Sharif BS

Publication type: Article

Publication status: Published

Journal: Electronics Letters

Year: 2008

Volume: 44

Issue: 12

Pages: 708-709

Print publication date: 01/01/2008

ISSN (print): 0013-5194

ISSN (electronic): 1350-911X

Publisher: Institution of Engineering and Technology

URL: http://dx.doi.org/10.1049/el:20080947

DOI: 10.1049/el:20080947

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