Design of Ultra Wideband Antenna with EBG to Improve the Gain

Abstract

A novel shape of microstrip UWB planar monopole with enhanced gain using EBG structure is presented. The popularity of microstrip antennas are increasing day by day because of easy analysis and fabrication, and their attractive radiation characteristics microstrip antenna using simple electromagnetic band gap (EBG) substrate has higher gain than conventional microstrip antenna. In this paper we propose to mushroom like Electromagnetic Band Gap (EBG) structure with different diameter of vias was designed to analyze the behavior of the EBG structure. Mushroom-like electromagnetic band-gap (EBG) structures exhibit unique electromagnetic properties that have led to a wide range of electromagnetic device applications and a simple, compact EBG microstrip antenna is proposed