A Novel Ultra Wideband Resistance Loaded Bow-Tie Antenna for Ground Penetrating Radar Applications

A novel bow-tie shaped antenna with semi-circle arms for Ground Penetrating Radar applications has been proposed in this paper. The results in both frequency and time domains including VSWR, radiation patterns and pulse response have been simulated and measured. Compared to traditional bow-tie shaped antennas with triangular arms, the performance of the proposed antenna has been significantly improved. The measured results can confirm that the VSWR is less than 4.2 across the frequency range from 0.5 to 7GHz and the peak ringing of the pulse response is less than 13.9%. In addition, the application of the proposed antenna in target detection with fine resolution has been validated.