Durable 12-arm resistive cross-dipole for use in ground-penetrating radar

A 12-arm resistive cross-dipole antenna is proposed and implemented using planar resistor technology (PRT). To improve the quality of the radiated pulse, the arms are loaded with a profile that is modified from the conventional Wu–King profile. The antenna is implemented with no soldered resistors. Thus, the mechanical vulnerability of the conventional resistive dipoles is resolved. The performance of the antennas implemented using a standard printed circuit board and the PRT is shown to be essentially the same. The performance of the antenna implemented using the PRT as a ground-penetrating radar antenna is also demonstrated by scanning over buried targets.