Performance of Circular Yagi-Uda Arrays for Beamforming Applications Using Particle Swarm Optimization Algorithm

K. R. Mahmoud Department of Electronics, Communications, and Computers, Faculty of Engineering, Helwan University, 11439 Cairo, Egypt

M. El-Adawy Department of Electronics, Communications, and Computers, Faculty of Engineering Helwan, University 11439, Cairo, Egypt

S. M. M. Ibrahem Department of Electronics, Communications, and Computers, Faculty of Engineering, Helwan University, 11439 Cairo, Egypt

R. Bansal Department of Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, UNIT 2157, Storrs, Connecticut 06269, USA

K. R. Mahmoud (Visiting) Department of Electrical and Computer Engineering, University of Connecticut, 371 Fairfield Way, UNIT 2157, Storrs, Connecticut 06269, USA

S. H. Zainud-Deen Department of Electronics and Electrical Communications Engineering, Faculty of Electronic Engineering, Minufiya University, Menouf, Egypt

Abstract

In this paper, a circular Yagi-Uda array (CYUA) for smart antenna applications is designed using the lengths and spacings from the optimum design of a three-element linear Yagi-Uda antenna. Then a modified circular Yagi-Uda array (MCYUA) is developed by adding 5 circular connecting wires to the inner parasitic elements (reflectors) to form a wire grid cylinder. The results are compared with those for uniform circular array (UCA) with 12 half-wave dipole elements. In our analysis, the method of moments (MoM) is used to compute the response of the arrays in a mutual coupling environment. The particle swarm optimization (PSO) algorithm is used to optimize the complex excitations of the adaptive arrays elements for beamforming.

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Performance of Circular Yagi-Uda Arrays for Beamforming Applications Using Particle Swarm Optimization Algorithm

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Performance of Circular Yagi-Uda Arrays for Beamforming Applications Using Particle Swarm Optimization Algorithm

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