Analysis and Design of UWB Vivaldi Antenna

A type of antipodal Vivaldi antenna is designed in this paper, which can be used for pulse radiation in UWB communication. Vivaldi antenna is a special tapered slot antenna with planar structure and is easy to be integrated with transmitting elements and receiving elements to form a compact structure. The antenna designed has good performance in the band 3.1GHZ to 10.6GHZ^[1], which is assigned to Ultra Wide Band (UWB) wireless communication by FCC. The antenna proposed can radiate or receive UWB pulses with little distortion and a good directivity and a high efficiency.