Perfectly matched layer media with CFS for an unconditionally stable ADI-FDTD method

被引：120

作者：

Gedney, SD ^{[1
]}

Liu, G

Roden, JA

Zhu, AM

机构：

[1] Univ Kentucky, Dept Elect Engn, Lexington, KY 40506 USA

[2] IBM Corp, Microelect Div, Res Triangle Pk, NC 27709 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2001年 / 49卷 / 11期

基金：

美国国家科学基金会;

关键词：

alternating direction implicit (ADI) method; FDTD method; perfectly matched layer (PML);

D O I：

10.1109/8.964091

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 perfectly matched layer (PML) medium with complex frequency shifted constitutive parameters is introduced for the three-dimensional alternating direction implicit (ADI) formulation of the finite-difference time-domain (FDTD) method. The absorbing boundary is implemented using the convolutional PML (CPML) approach. It is demonstrated that the resulting ADI-CPML scheme is unconditionally stable. The effectiveness of the absorbing medium as a function of the time step is also demonstrated. The proposed method has the advantage that it allows the application of the ADI method to low-frequency analysis.

引用

页码：1554 / 1559

页数：6

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