UWB Air-Coupled Antenna for Ground Penetrating Radar

Ground Penetrating Radar (GPR) is a promising technology to detect buried objects beneath or near ground surface. To achieve high-resolution and accurate enough images, the transmitting antenna (TX) in this technology is required to radiate a highly-correlated narrow width pulse towards ground where the targets are hidden. For this application, an ultra-wide bandwidth (0.3?6 GHz) antenna from the family of Vivaldi antennas is designed and optimized. This antenna meets the required features of the TX antenna both in frequency and time domains. Apart from its broadband characteristics, the antenna radiates highly correlated pulse towards its footprint. It, also, shows very low late-time ringing and has narrow width impulse response. The antenna is designed on a 2.33 dielectric permittivity substrate and is fed via a 50 SMA end-launch.Microwave Technology and Systems for RadarTelecommunicationsElectrical Engineering, Mathematics and Computer Scienc