A Stability Improvement Technique Using PML Condition for the Three-Dimensional Nonuniform Mesh Nonstandard FDTD Method

被引：5

作者：

Ohtani, Tadao

Kanai, Yasushi ^{[1
]}

Cole, James B. ^{[2
]}

机构：

[1] Niigata Inst Technol, Kashiwazaki 9451195, Japan

[2] Univ Tsukuba, Tsukuba, Ibaraki 3058577, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 05期

关键词：

FDTD methods; nonstandard FDTD (NS-FDTD) methods; nonuniform mesh; perfectly matched layer (PML);

D O I：

10.1109/TMAG.2013.2238613

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：

We propose a technique to improve the stability of three-dimensional (3D) nonuniform mesh nonstandard FDTD (NS-FDTD) calculations. To mitigate the numerical instability arising from the connection of different-sized meshes, our method combines the usual interpolation fields and perfectly matched layer (PML) condition at mesh interfaces. We examine a connection for a mesh size ratio of 3: 1, and show numerically that our technique improves the stability of 3D NS-FDTD calculation on nonuniform meshes. Our technique is also applied to analyze the fields around a periodic slot panel.

引用

页码：1569 / 1572

页数：4

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