DESIGN OF E-SHAPE RECONFIGURBLE MICROSTRIP ANTENNA FOR ULTRA WIDE BAND APPLICATIONS

Abstract

In this paper, a frequency and radiation reconfigurable microstrip antenna design is proposed for Ultra Wide Band application (UWB). The radiating patch was an E-shaped microstrip printed over a FR-4 substrate with relative dielectric constant of 4.3, and thickness of 3 mm. A microstrip line feeds this proposed antenna. To satisfy the UWB frequencies the length ground plane has been reduced. The finite ground plane is printed on the lower side of dielectric substrate. The modeling process and performance estimation of the designed antenna was achieved by using the electromagnetic simulator, Computer Simulation Technology (CST) Software. Simulation results indicate that the designed antenna has an effective bandwidth, for |S_11 |≤-10 dB, extending from approximately 3 GHz to more than 16 GHz, which covers the entire UWB band of 3.1 GHz to 10.6 GHz.