systems and methods include up - converting a uwb frequency pulse from a uwb radar unit to a v band frequency pulse ; transmitting the v band frequency pulse via an active array antenna ; receiving a v band echo pulse via the active array antenna ; down - converting the v band echo pulse from the active array antenna to a uwb pulse ; and feeding the uwb pulse to the uwb radar unit for processing by the uwb radar unit . a v band antenna system includes : an antenna board that defines an antenna plane being the plane of the board and comprising a plurality of antenna elements ; a mother board providing a corporate combining feed to the antenna board ; and a power management board to which the antenna board and mother board are mounted perpendicularly to the antenna plane , wherein the antenna elements provide a beam forming antenna for ultra wide band pulses at v band frequencies .