Study on a Dual-Band Notched Aperture UWB Antenna Using Resonant Strip and CSRR

Abstract

An ultra-wideband (UWB) aperture antenna with dual band-notched characteristic is presented. The antenna consists of a circular monopole on the front side and a U-shaped aperture on the back ground plane. By attaching a rainbow-shaped resonant strip on the aperture plane and etching a complementary split ring resonator (CSRR) on the circular monopole, two notched band, 3.3–3.6 GHz for WiMAX and 5.15–5.825 GHz for WLAN, are achieved respectively. The antenna is successfully simulated and measured, showing that dual-band notched characteristic can be obtained by using two different structure. Moreover, the band notched structure is also studied based on the input impedance of the proposed antenna.