Analysis of planar circuits using an unconditionally stable 3D ADI‐FDTD method
Analysis of planar circuits using an unconditionally stable 3D ADI‐FDTD method
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DOI：
10.1002/mop.20936
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发表时间：
2005-07
影响因子：
1.5
通讯作者：
Y. Yang;R. S. Chen;Wanchun Tang;K. Sha;E. Yung
中科院分区：
文献类型：
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作者：
Y. Yang;R. S. Chen;Wanchun Tang;K. Sha;E. Yung
在本文中，使用 3D 交替方向隐式有限差分时域 (ADI-FDTD) 算法来分析平面电路。描述了ADI-FDTD中的源激励，并在ADI-FDTD算法中联合采用两种吸收边界条件（ABC）：在传播方向应用Gedney单轴PML格式，并在其他外表面上设置Mur的一阶吸收边界条件（ABC）。给出了时域波形和 S 参数。几个例子的数值模拟表明，这种 ADI-FDTD 算法的迭代次数可以比传统 FDTD 算法少六倍，而不会造成很大的精度损失。 © 2005 Wiley periodicals, Inc. Microwave Opt Technol Lett 46: 175–179, 2005；在线发表于 Wiley InterScience (www.interscience.wiley.com)。 DOI 10.1002/mop.20936
In this paper, a 3D alternating‐direction implicit finite‐difference time‐domain (ADI‐FDTD) algorithm is used to analyze planar circuits. The source excitation in ADI‐FDTD is described and two kinds of absorbing boundary conditions (ABCs) are jointly employed for ADI‐FDTD algorithm: the Gedney's uniaxial PML scheme is applied in the propagation direction, and Mur's 1st‐order absorbing boundary condition (ABC) is set on the other outer surfaces. Both time‐domain waveforms and S‐parameters are presented. The numerical simulations of several examples show that the number of iterations with this ADI‐FDTD algorithm can be six times less than that with the conventional FDTD without a large loss of accuracy. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 175–179, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20936