FD-TD Analysis of Electromagnetic Wave Scattering by Infinite Periodic Structure

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FD TD Analysis of Electromagnetic Wave Scattering by Infinite Periodic Structure

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.