GPR Antenna Test Facility at IRCTR-IB

This paper describes the GPR antenna test facility developed at the research branch of IRCTR at ITB Indonesia called IRCTR Indonesian Branch (IRCTR-IB). The facility consists of a GPR test range, a PC-controlled scanner, a UWB sensor, and measuring equipment. The test range was constructed as a wooden sandbox of 3 m × 3 m × 1.6 m and filled with dry sand with relative permittivity of 5.1. The scanner is used for accurate antenna positioning above the sand and fully controlled from a PC. A control software has been developed to allow automatic data acquisition and antenna positioning, important for measurements of antenna footprints. The measuring equipment consists of a vector network analyzer, a sampling converter and pulse generators to allow accurate measurements in frequency as well as time domain.