Perfectly matched layer implementation using bilinear transform for microwave device applications

被引：25
|
作者：
Dong, XT [1 ]
Yin, WY [1 ]
Gan, YB [1 ]
机构：
[1] Natl Univ Singapore, Temasek Labs, Singapore 119260, Singapore
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2005年 / 53卷 / 10期
关键词：
bilinear transform; finite difference time domain (FDTD); microwave devices; perfectly matched layer (PML); S-parameters;
D O I：
10.1109/TMTT.2005.855121
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：
This paper presents an extensive study on the perfectly matched layer (PML) implementation using bilinear transform in the finite-difference time-domain (FDTD) simulation. The bilinear transform is used to implement both the stretched coordinate PML (SC-PML) and the uniaxial PML (UPML) with the complex frequency-shifted (CFS) equations. It is shown that with the CFS factor, the implemented SC-PML and UPML attain significantly lower relative reflection error over wide frequency range with both superior in performance to the split-field PML. The FDTD algorithm incorporating these PMLs is applied to analyze wide-band responses of some complex microwave devices, including RF microelectromechanical systems switch and coplanar waveguide crossover junction.
引用
收藏
页码：3098 / 3105
页数：8
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