This paper presents the antenna for ground penetrating radar (GPR) for soil characteristics measurement application. The objective is operating frequency having range from 250-1250 MHz whilst restricting antenna lobs radiate to ground direction. The demand of ground penetrating radar design is antenna with ultra wide bandwidths (UWB). Designing optimum gain consideration of 5dBi thus the conventional antennas such as dipoles cannot be used effectively throughout the frequency band. The main objective of this proposed antenna is to use it for agriculture soil characteristics extraction. This paper proposes the practicability of building a ultra-wide band bow-Tie slot antenna for GPR system is explored. Aluminum back cavity is considered to achieve unidirectional radiation pattern and enhance the gain of antenna. Considering best simulation results antenna is configured and implemented. © 2016 IEEE.