Regular Shaped DGS on SQMSA to Enhance the Performance

Abstract: – Miniaturization and performance enhancement of the antenna is the major task in the field of microwave engineering. In this paper Square Mictrostrip antenna is designed for 2.4GHz frequency. For the antenna miniaturization and Bandwidth Improvement Regular Shaped DGS on Square microstrip Patch antenna (SQMSA) is used. The Design of DGS has been analyzed for different regular shaped slot DGS. The Simulation process has been done through High Frequency electromagnetic field Simulation Solution (HFSS-2013) which uses the highly accurate finite element method (FEM). The properties of antenna such as reflection co-efficient, bandwidth, virtual size reduction are determined and compared with the conventional Antenna without DGS. It is found that the antenna resonates at 1.6GHz with bandwidth 38 MHz and overall size reduction is found to be >53.12% in comparison with convention antenna. Further it’s also observed that simulated antenna has application in Lband and satellite phone.

Keywords- Square Microstrip Patch antenna (SQMSA), VSWR, Defected Ground Structure, Return Loss, HFSS

I. INTRODUCTION

In today’s wireless communication, such as Satellite communication and Mobile communication, global positioning system (GPS) ,WiMax, RFID and WLAN and medical application. The requirements of antenna for wireless communication application are small, low cost and low profile. Microstrip antenna meet all this requirement. Although Microstrip patch antennas have many very desirable features, they generally suffer from limited bandwidth. So the most important disadvantage of microstrip resonator antenna is their narrow bandwidth. To overcome this problem without disturbing their principal advantage (such as simple printed circuit structure, planar profile, light weight and cheapness), a number of methods and structures have recently been investigated. [1] Read More