Direct Z-Transform Implementation of the CFS-PML Based on Memory-Minimized Method

被引：24

作者：

Feng, Naixing ^{[1
]}

Yue, Yongqing ^{[1
]}

Liu, Qing Huo ^{[2
]}

机构：

[1] Xiamen Univ, Inst Electromagnet & Acoust, Xiamen 361005, Peoples R China

[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2015年 / 63卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Complex frequency-shifted perfectly matched layer (CFS-PML); direct Z-transform (DZT) method; finite difference time domain (FDTD); memory-minimized method (Tri-M); PERFECTLY MATCHED LAYER; EFFICIENT FDTD IMPLEMENTATION; DSP TECHNIQUES;

D O I：

10.1109/TMTT.2015.2389218

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：

Efficient and unsplit-field-based stretched coordinate perfectly matched layer (PML) formulations with the complex frequency-shifted (CFS) scheme that combine the memory-minimized method (Tri-M) and the direct Z-transform (DZT) method are proposed to truncate the finite-difference time-domain lattices. The proposed algorithm takes advantage of the minimized memory of the Tri-M method, the optimal accuracy of the DZT method, and the capacity of the PML for attenuating evanescent waves and reducing late-time reflections. Three 3-D numerical simulations have been carried out to validate the proposed formulations.

引用

页码：877 / 882

页数：6

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