Microstrip Patch Antenna for GPS/WiMAX/WLAN Applications

Abstract

In this paper a microstrip patch antenna is proposed for GPS/WiMAX/WLAN applications. The proposed structures resonate to cover the desired band with low profile and simple structure of 30 x 35 mm2. An aperture coupled feeding technique is introduced to get the desired result, two substrates, out of which the ground of the first substrate is etched by taking a slot and some simple slots are also etched on the top (patch) of the antenna. To test the simulation results, a prototype antenna is produced and tested. The radiation performance such as Voltage Standing Wave Ratio(VSWR), return loss and radiation pattern of antenna are observed by using Ansys HFSS v.15.0.0 15.0. The simulated and measured radiation performance is presented in this paper which show so the to the proposed antenna resonates at 1.57542 GHz (1.55 -1.64GHz),3.5GHz(3.42-3.57GHz),and5.2GHz(5.11-5.48GHz) for GPS, WiMAX and WLAN applications respectively.