Numerical Dispersion Analysis of the One-Dimensional Iterated Crank-Nicolson-Based FDTD Method

Akira KAWAHARA; Jun SHIBAYAMA; Kazuhiro FUJITA; Junji YAMAUCHI; Hisamatsu NAKANO

doi:10.1587/transele.2023ESS0004

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Numerical Dispersion Analysis of the One-Dimensional Iterated Crank-Nicolson-Based FDTD Method

Akira KAWAHARA, Jun SHIBAYAMA, Kazuhiro FUJITA, Junji YAMAUCHI, Hisamatsu NAKANO

著者情報

キーワード: FDTD, ICN, Amplification matrix, eigenvalue, numerical dispersion

ジャーナルフリー早期公開

論文ID: 2023ESS0004

DOI https://doi.org/10.1587/transele.2023ESS0004

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. E107.C (2024), No. 11 pp. 494-496

詳細

抄録

Numerical dispersion property is investigated for the finite-difference time-domain (FDTD) method based on the iterated Crank-Nicolson (ICN) scheme. The numerical dispersion relation is newly derived from the amplification matrix and its property is discussed with attention to the eigenvalue of the matrix. It is shown that the ICN-FDTD method is conditionally stable but slightly dissipative.

責任著者(Corresponding author)

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