A Wideband Microstrip Antenna with EBG Structure and Superstrate

Abstract

A microstrip patch antenna withEBG structure and a dielectric layer have noteworthy effect on its input characteristics and band width. In this paper we studied both electromagnetic band-gap structure and a superstrate to increasing bandwidth of micrstrip patch antenna. We calculated bandwidth with and without EBG to design an Antenna for resonance frequency 4GHz. And then apply superstrate in EBG structure. This antenna simulated on Ansoft HFSS designer software,impedance bandwidth ,VSWR ,return losses & smith charts are observed and experimentally studied .Details of simulated results are presented and discussed.