Comparison between horn and bow-tie antennas for Ground Penetrating Radar

Many different antennas are proposed and tested for GPR, but bow-tie or horn antennas are doubtless the most used. Their simple and robust design makes them effective in most applications. The aim of this paper is a direct comparison between a horn and a bow-tie antenna, used in the same operative conditions, i.e. in the same band, with the same transceiver and on the same ground. Although this is a preliminary study based on a very limited set of experimental data, horn antenna appears to have advantages with respect to bow-tie antenna in GPR applications.