Polarization investigation of rough surface scattering for THz propagation modeling

This paper presents the modeling of both coherent and incoherent scattering processes from rough surfaces at THz frequencies with the focus on polarization aspects. In a ray tracing algorithm, coherent scattering is implemented based on the Kirchhoff theory whereas a perturbation approach is used for the incoherent contribution. Geometrical depolarization is accounted for by means of the Jones calculus. Ray tracing is applied in a small indoor scenario to demonstrate the influence of depolarization on THz propagation channels.