A compact multiband antenna for GSM and WiMAX applications

Abstract

This paper presents a compact low profile microstrip patch antenna suitable for Global System for Mobile Communications (GSM) and Worldwide Interoperability for Microwave Access (WiMAX) applications. FR4 epoxy is used as substrate with relative permittivity 4.4 and tangent loss 0.02. The prototype contains slots, shorted pin, partial ground, tuning stub and dual feeding techniques. Parametric analysis has been carried out to observe the effects of techniques. Simulation results show that antenna has enough impedance bandwidth to cover the desired frequency bands. The prototype is fed using transmission line. Antenna exhibits omni-directional radiation patterns with reasonable gain on all operating frequency bands. Characteristic analysis and simulation of prototype was done using Ansoft HFSS (High Frequency Structure Simulator). © 2012 Springer-Verlag.