A Convolutional Perfect Matched Layer (CPML) for One-Step Leapfrog ADI-FDTD Method and Its Applications to EMC Problems

被引：48
作者：
Wang, Xiang-Hua [1 ,2 ]
Yin, Wen-Yan [1 ,3 ]
Yu, Yi-Qiang [4 ,5 ]
Chen, Zhizhang [4 ]
Wang, Jian [3 ]
Guo, Yang [1 ]
机构：
[1] Zhejiang Univ, State Key Lab MOI, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China
[2] Tianjian Univ Technol & Educ, Tianjin 300222, Peoples R China
[3] Shanghai Jiao Tong Univ, Ctr Microwave & RF Technol, Minist Educ EMC & High Speed Elect Informat Syst, Key Lab,Sch Elect Informat & Elect Engn, Shanghai 200240, Peoples R China
[4] Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS B3H 3J5, Canada
[5] E China Jiao Tong Univ, Nanchang 330013, Peoples R China
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2012年 / 54卷 / 05期
关键词：
Alternating-direction-implicit (ADI) scheme; convolutional perfectly matched layer (CPML); finite-difference time domain (FDTD); intentional electromagnetic pulse (IEMP); one-step leapfrog; stability; surface current distribution; DISPERSION ANALYSIS; MEDIA; FORMULATION; ABSORPTION; STABILITY; CFS; PML;
D O I：
10.1109/TEMC.2012.2198067
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 new convolutional perfectly matched layer (CPML) is proposed and implemented in one-step leapfrog alternately direction-implicit finite-difference time-domain (ADI-FDTD) method. Different from the previous developed perfectly matched layers (PMLs) used in the ADI-FDTD methods, the proposed PML has the same form as that used for the conventional FDTD method, requiring only one-step computations of the CPML auxiliary quantities. Stability of the proposed CPML is verified semianalytically and its high absorption efficiency is proven numerically. The proposed CPML is then applied to a number of applications; they include radiation generated by a current source in free space, propagating and evanescent modes in a rectangular waveguide, and transient current prediction on an aircraft that is modeled with a numerical grid of 402 x 48 x 262. Accurate results have been obtained in comparison with the results obtained with the other methods.
引用
收藏
页码：1066 / 1076
页数：11
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