Design Concepts for a Miniature Pavement GPR Antenna (1341-3F)

The existing horn antennas use in commercial pavement Ground Penetrating Radar (GPR) systems are based on 20 year old technology and design concepts. In recent years rapid advances have been made in designing planner miniature antennas. In this study a prototype antenna has been designed and tested in the laboratory. The preliminary results indicate that the antenna could transmit and receive GPR energy.|In future studies researchers hope to build a field unit capable of stand-alone operation or a unit that will be mounted on a Falling Weight Deflectometer (FWD) to provide layer thickness information at each test location.