An arc shape ultra-wideband (UWB) antenna design with different configurations is the part of the discussion during this paper by implementing a ground-penetrating radar (GPR) technology specifically for search and rescue applications. The simulated antenna used a defected ground structure method for the bandwidth enhancement i.e. 3-16 GHz, possess gain around 6.2 dB. The complete detection model for multiple configurations i.e. monostatic and bistatic was simulated. The radar cross-section (RCS) for defined models is studied and compared in order to detect the obstacle. The analysis shows that a bistatic configuration for antenna developed a clear image for detection behind the obstacle.