A Study of Cross Ring Antenna for UWB Applications

This paper presents an investigation of cross ring/disc antenna for UWB applications. A coaxial cable fed cross the ring antenna with satisfactory -10 dB return loss bandwidth is firstly designed. In order to minimize the radiation pattern distortion at 9 GHz, an extended ground plane is then introduced. A comparison of performance of four different kinds of cross ring/disc antennas is also illustrated.