Design of the UWB Antenna Using Fractal Concept

摘要

In this paper a novel barbell-shaped planar antenna for UWB application is proposed.The antenna,composed of two symmetrical fractal patch radiators and partially grounded plane which are used to realize the characteristic of ultra-wideband (UWB),can occupy about 3.95GHz bandwidth (from 3.45GHz to 7.40GHz),which is equivalent to 73%.The symmetrical radiation patterns in the y-z and x-z planes are obtained for the potential of pattern reconfigurable.An optimized UWB antenna is designed and simulated by ansoft-HFSS.