A Compact Ultra-Wideband Antenna with Artificial Materials for Ground-Penetrating Radar Applications

Abstract

For short-pulse ground-penetrating radar (GPR) application, a compact ultra-wideband (UWB) antenna is proposed. We have designed artificial material (AM) on both the ground and patch portions of the antenna in order to increase the radiation ability of the antenna. Two designs (one with and another without artificial material) are simulated, measured, and compared in order to validate the proposed antenna design. The results show that the suggested antenna operates across the whole UWB spectrum from 3 to 15 GHz and has a − 8 dB impedance bandwidth of 200% (3.0–15.0 Hz). It is useful for GPR application as well as in many other wireless systems due to its wide bandwidth, high gain, and directivity.