Aspects of Radar Cross Section Optimization for Dielectric Corner Reflectors

This study presents an investigation on the use of anti-reflective (AR) coatings for dielectric corner reflectors (DCR) in radar engineering. DCRs have not been extensively researched for radar applications in the past, but have the potential to enhance the radar cross section (RCS) of objects or for measurement and testing. Our research examines the monostatic RCS behavior of the DCR over a range of different relative permittivities, and presents simulations to validate the concept of AR coatings. The results demonstrate that the use of AR coatings can mitigate interference effects that occur with perpendicular illumination, significantly increase the overall RCS and greatly enhance the opening angle of DCRs. Additionally, the impact on the bistatic RCS is also investigated.