Design of Ground Penetrating Radar antenna for buried object detection

In this paper, the design of planar antenna for use in Ground Penetrating Radar (GPR) for buried object detection is presented. The proposed antenna offers wide operational bandwidth within 500 MHz to 2 GHz frequency band. This property makes the antenna suitable for the application of GPR for buried object detection. Taconic TLY-5 is used as the substrate with dielectric constant of 2.2, tangent loss of 0.0009 and thickness of 1.57 mm. The proposed antenna has simple structure and fully planar, therefore it is easy to integrate with other planar devices. To obtain a directional radiation pattern, the antenna is placed inside an open metallic shielded box. In turn, the gain of the antenna is also increased using this approach. The results in term of reflection coefficient, gain, radiation pattern of the antenna are discussed in this paper.