Antenna System for Passive Radar Operating in DVB-T Band

This paper presents an antenna system for a passive radar designed to operate in the DVB-T band covering frequencies from 450 MHz to 1 GHz. A setup of 8 Vivaldi antennas with reduced dimensions was developed for this purpose. The use of corrugation allowed to reduce the size of a single radiator, and consequently the entire antenna array. The results of computer simulations of the parameters of the developed antenna show its good impedance matching in the assumed frequency range as well as the directional radiation pattern of individual radiators.