Influence of metallic target surface roughness on THz scattering characteristics

Compared to microwave and infrared, THz radar has higher resolution, stronger secrecy, stronger penetrating ability and stronger anti-interference ability. The development of THz radar system depends on the research of THz radar target characteristics. However, different from microwave band, we must take into account the influence of target surface roughness on THz scattering characteristics during developing the research of THz radar target characteristics. This paper studies the influence of metallic target surface with different roughness on THz scattering characteristics through theoretical calculations and experiment.