Abstract

Aperture coupled microstrip antenna is gathering a lot of interest in communication and radar systems. Particle swarm optimization (PSO) has been introduced to the electromagnetic community recently for design optimization of microstrip patch antenna .In this paper PSO has been used for accurate determination of resonant frequency of rectangular aperture-coupled microstrip antenna. The investigation is made at different microwave frequency ranges and it extends up to Ku band. The procedure is repeated for different dielectric constant of antenna and feed substrate. The optimization problem has three variables namely, aperture length, aperture width and stub length respectively. Accuracy of the results encourages the use of PSO.

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