Frequency notched wideband printed directional antennas

Printed wideband and ultra-wideband (UWB) antennas are the simple and low cost electromagnetic radiator design for the front-end system with the low-power and high-data-ratio transmissions. Antenna with stable and directional radiation pattern is critical to maintain the link gain of the wireless communication. With co-existence of UWB and other different wireless systems, UWB antenna with notched band(s) is an effective way to suppress the interference between these systems. This invited talk reviews some of the recent works on these areas, which has been pursued by the author´s research group.