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

Special Section on Recent Advances in Simulation Techniques and Their Applications for Electronics

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

2024 年 E107.C 巻 11 号 p. 494-496

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

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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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