Printed diversity antenna with cross shape stub for ultra-wideband applications

A printed diversity antenna for ultra-wideband applications is proposed. The proposed antenna is composed of two square monopoles. In order to reduce the mutual coupling between the two elements, A cross shape stub is introduced. The antenna has been investigated numerically. As is reported, the operation bandwidth of the antenna is from 3.3 GHz to 10.5 GHz. Good isolations can be achieved. It may be useful for UWB MIMO applications.