Unconditionally Stable CFS-PML Based on CNAD-BOR-FDTD for Truncating Unmagnetized Plasma

被引：7
|
作者：
Li, Jianxiong [1 ,2 ]
Jiao, Wei [1 ,2 ]
Zhao, Xiaoming [3 ]
机构：
[1] Tianjin Polytech Univ, Sch Elect & Informat Engn, Tianjin 300387, Peoples R China
[2] Tianjin Key Lab Optoelect Detect Technol & Syst, Tianjin 300387, Peoples R China
[3] Tianjin Polytech Univ, Sch Text, Tianjin 300387, Peoples R China
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2018年 / 60卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Auxiliary differential equation (ADE); body of revolution (BOR); complex frequency-shifted perfectly matched layer (CFS-PML); Crank-Nicolson (CN) approximate decoupling(CNAD); finite-difference time-domain (FDTD); trapezoidal recursive convolution (TRC);
D O I：
10.1109/TEMC.2017.2788421
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：
The unconditionally stable complex frequency-shifted perfectly matched layer (CFS-PML) based on Crank-Nicolson approximate decoupling is introduced to the body of revolution finite-difference time-domain for truncating unmagnetized plasma. The proposed algorithm not only removes the Courant-Friedrichs-Lewy stable constraint, but also saves much CPU time. Its implementation takes advantage of the auxiliary differential equation method for the CFS-PML and the trapezoidal recursive convolution method for unmagnetized plasma. A numerical test is provided to confirm the effectiveness of the proposed algorithm in the two-dimensional cylindrical grids. The results show that the proposed PML for truncating plasma is efficient in attenuating the low-frequency evanescent waves and reducing the late-time reflections.
引用
收藏
页码：2069 / 2072
页数：4
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