A novel ultra-wideband (UWB) antenna consisting of a linear tapered Slot in the ground plane and a microstrip to slotline transition is investigated. The antenna possesses a wide bandwidth from 2.95-14 GHz for vertical bar S-II vertical bar < - 10 dB and shows stable radiation patterns with an average gain of 3 dBi throughout the hand. Measured group delay and transmission characteristics indicate that the antenna has good pulse handling capabilities.