A Split-Step FDTD Method for 3-D Maxwell's Equations in General Anisotropic Media

被引：16

作者：

Singh, Gurpreet ^{[1
]}

Tan, Eng Leong ^{[1
]}

Chen, Zhi Ning ^{[2
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Inst Infocomm Res, Singapore 138632, Singapore

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2010年 / 58卷 / 11期

关键词：

Alternating direction implicit FDTD; anisotropic media; finite-difference time-domain (FDTD) method; locally 1-D FDTD; split-step FDTD; unconditionally stable FDTD methods; TIME-DOMAIN METHOD; FINITE-DIFFERENCE; DISPERSIVE MEDIA; ALGORITHM; IMPLEMENTATIONS; FORMULATION; DIELECTRICS; STABILITY; ACCURACY; SCHEME;

D O I：

10.1109/TAP.2010.2071342

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A split-step finite-difference time-domain (FDTD) method is presented for 3-D Maxwell's equations in general anisotropic media. The general anisotropic media can be characterized by full permittivity and permeability tensors. Stability analysis of the proposed split-step FDTD method using the Fourier method is presented. The eigenvalues of the Fourier amplification matrix are numerically shown to have unity magnitude even for time steps greater than the Courant limit time step, thereby illustrating the stable and non-dissipative nature of the split-step FDTD method in general anisotropic media. Numerical results are presented to further validate the accuracy and stability of the proposed split-step FDTD method in general anisotropic media.

引用

页码：3647 / 3657

页数：11

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