The study of the ground plane effect on a Multiband PIFA Antenna by using Genetic Algorithm and Particle Swarm Optimization

L Wakrim,S Ibnyaich,M M Hassani

doi:10.1590/2179-10742016v15i4626

L Wakrim, S Ibnyaich + Show 1 more

Open Access

https://doi.org/10.1590/2179-10742016v15i4626

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Abstract

The ground plane plays an important role on the performance of a planar inverted-F antenna (PIFA). In this regard, the ground plane modification using slots is proposed in this research to obtain a dual band antenna for WiMAX application. Â Â Â Popular optimization techniques, as genetic algorithm (GA) and particle swarm optimization (PSO), were used to design the shape of the ground plane in order to improve the bandwidth and to achieve dual band antenna instead of single band antenna. Â Â The proposed method divides the overall ground plane into different cells. Through this technique it is possible to obtain a dual band antenna reduced by more than 50%, thereby reducing the overall ground plane. Â Â Both GA and PSO designs are provided. This new method shows many advantages over PIFA antenna in terms of performance and weight.

Highlights

With the rapid progress in the wireless communication, there is an increase demand for antenna solutions that provide multi band, small size, low cost, and high performance [1]
The genetic algorithm (GA) operates on a matrix chromosome, which describes the shape of the ground plane
Matrix cells which contain a 1 correspond to portions of the antenna ground plane filled with metal; cells which contain a 0 correspond to portions of the antenna that are not filled as shown in Fig.6 (b)

Summary

Introduction

With the rapid progress in the wireless communication, there is an increase demand for antenna solutions that provide multi band, small size, low cost, and high performance [1]. Planar Inverted-F Antenna (PIFA) is the most widely used antenna owing to its low profile, simple structure and ease of fabrication, and primarily its high efficiency and wideband characteristic [2].Because of all these interesting characteristics, PIFAs are extremely attractive to be used in multiband applications, and growing research activity is being focused on them.The wireless communication device provides the ability to integrate multiband. A dual or multiband antenna is attractive in many commercial applications as it is designed to have a single radiator with a capability to transmit and receive multiple frequencies [3]. Our research provides a dual band PIFA antenna and maximizes the bandwidth while keeping its overall size small.

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