An FDTD absorbing boundary condition for anisotropic media based on NPML

被引：3

作者：

Shi, Li-Juan ^{[1
,3
]}

Yang, Li-Xia ^{[2
]}

Cai, Zhi-Chao ^{[2
]}

Ding, Jian-Ning ^{[3
]}

机构：

[1] Jiangsu Univ, Sch Sci, Zhenjiang, Peoples R China

[2] Jiangsu Univ, Dept Commun Engn, Zhenjiang, Peoples R China

[3] Jiangsu Univ, Sch Mech Engn, Zhenjiang, Peoples R China

来源：

WAVES IN RANDOM AND COMPLEX MEDIA | 2015年 / 25卷 / 02期

基金：

中国国家自然科学基金;

关键词：

PERFECTLY MATCHED LAYER; PML; ABSORPTION; PLASMA;

D O I：

10.1080/17455030.2015.1020907

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Based on the nearly perfectly matched layer (NPML) theory, a finite-difference time-domain (FDTD) absorbing boundary condition (ABC) is presented for truncating three-dimensional (3-D) anisotropic medium. In the proposed technique, the complex coordinate stretching in the NPML scheme and the spatial interpolation method are employed. The associated ABC formulations have the advantage of simplicity in the FDTD implementations. The radiation fields of an electric dipole in anisotropic media are calculated using the presented ABC. The results are numerically verified by the comparison with the reference solutions. Furthermore, in order to clearly show the effective absorbing performance of the proposed method, the reflection coefficient and time-dependent relative error for different layers NPML absorbing boundary are also simulated.

引用

页码：293 / 305

页数：13

共 20 条

[1] Three-dimensional perfectly matched layer for the absorption of electromagnetic waves [J].

Berenger, JP .

JOURNAL OF COMPUTATIONAL PHYSICS, 1996, 127 (02) :363-379

[2] On the reflection from Cummer's nearly perfectly matched layer [J].

Bérenger, JP .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2004, 14 (07) :334-336

[3] Perfectly matched layer for the FDTD solution of wave-structure interaction problems [J].

Berenger, JP .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1996, 44 (01) :110-117

[4] A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES [J].

BERENGER, JP .

JOURNAL OF COMPUTATIONAL PHYSICS, 1994, 114 (02) :185-200

[5] A 3D PERFECTLY MATCHED MEDIUM FROM MODIFIED MAXWELLS EQUATIONS WITH STRETCHED COORDINATES [J].

CHEW, WC ;

WEEDON, WH .

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 1994, 7 (13) :599-604

[6] A simple, nearly perfectly matched layer for general electromagnetic media [J].

Cummer, SA .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2003, 13 (03) :128-130

[7]

Fan GX, 1996, IEEE TRANS ANTENNAS, V44, P110

[8]

Hagness, 2005, COMPUTATIONAL ELECTR

[9] The Nearly Perfectly Matched Layer is a Perfectly Matched Layer [J].

Hu, Wenyi ;

Cummer, Steven A. .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2004, 3 :137-140

[10] On the accuracy of the nearly PML for nonlinear FDTD domains [J].

Ramadan, O .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2006, 16 (03) :101-103

← 1 2 →