Dispersive contour-path algorithm for the FDTD analysis of a periodic structure at oblique incidence

Tetsuya Iwamoto; Jun Shibayama; Junji Yamauchi; Hisamatsu Nakano

doi:10.1587/elex.20.20230007

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Dispersive contour-path algorithm for the FDTD analysis of a periodic structure at oblique incidence

Tetsuya Iwamoto, Jun Shibayama, Junji Yamauchi, Hisamatsu Nakano

著者情報

キーワード: finite-difference time-domain (FDTD) method, dispersive contour-path (DCP) algorithm, periodic structure, trapezoidal recursive convolution (TRC) technique

ジャーナルフリー早期公開

論文ID: 20.20230007

DOI https://doi.org/10.1587/elex.20.20230007

この記事には本公開記事があります。

The final version of this article is now available: Vol. 20 (2023), No. 6 pp. 20230007-20230007

詳細

抄録

Arbitrarily-shaped dispersive media can be treated with the dispersive contour-path (DCP) FDTD method. We extend the DCP-FDTD method for the analysis of a periodic structure to the case at oblique incidence. A trapezoidal recursive convolution technique is used to incorporate dispersive media into the DCP-FDTD method. The transmission characteristics of a metallic cylinder array are evaluated and discussed. It is found that the present method gives almost the same solution as the conventional staircase FDTD method, even with a sampling width five times as large as the conventional counterpart.

責任著者(Corresponding author)

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