A New Band-Notched UWB Printed Monopole Antenna

A simple and compact microstrip-fed ultra wideband (UWB) printed monopole antenna with band-notched performance is proposed in this paper. The antenna is composed of a square ring with a T-shaped strip, so that the antenna occupies about 7.68GHz bandwidth covering 3.08-10.76GHz with expected band rejection of 5.06GHz to 5.89GHz. A quasi- omnidirectional and quasi-symmetrical radiation pattern is also obtained. This kind of band-notched UWB antenna requires no external filters and thus greatly simplifies the system design of UWB wireless communication.