A CSRR DGS Loaded Dual-Frequency Microstrip Antenna in Ground Plane for Application in PCS and WLAN Communication System

Abstract

In this paper, a rectangular microstrip antenna which is inset-fed by the microstrip line with a complementary split ring resonator (CSRR) defected ground structure (DGS) cell in the ground plane just below the microstrip line (substrate present in between) for the dual frequency operation at 1.92 GHz and 5.22 GHz is presented, which are the operation bands of personal communication system (PCS) and wireless local area network (WLAN) respectively. The fundamental mode TM10 and one strongly activated higher order mode are excited which are responsible for the dual-band operation. Smaller broadside radiation and same polarization planes are the characteristics of these modes.