FD-TD analysis of electromagnetic wave scattering by infinite periodic structure

摘要

FD-TD analysis takes a lot of advantages in dealing with the scattering from complex structures. In this paper, the approach of analyzing the scattering by infinite periodic structures is introduced. A new modified perfectly matched layer absorbing boundary condition is used to facilitate the FD-TD modeling. The successful design of infrared/millimeter wave frequency selective surface shows the validity of this technique.