Time-domain target detection using a double-sided broadband antenna

A double-sided broadband antenna with a double-sided feed line is presented. Compared with traditional broadband antennas, it is quite practical to fabricate and use. A mathematical model to simulate the structure and performance of the antenna is established, based on dipole antenna array theory. A formula for the electric field is derived, and the radiation patterns are calculated. It is clear that this antenna works well over a broad frequency range (i.e. from 50 MHz to 10.05 GHz). Specific measurements are carried out to test the performance of the antenna. Finally, a landmine detection system is designed and tested, yielding very encouraging results.