Auxiliary differential equation finite-element time-domain method for electromagnetic analysis of dispersive media
Auxiliary differential equation finite-element time-domain method for electromagnetic analysis of dispersive media
复制标题
色散介质电磁分析的辅助微分方程有限元时域法
DOI：
10.1016/j.ijleo.2019.03.057
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发表时间：
2019-01-01
期刊：
影响因子：
3.1
通讯作者：
Ge, Debiao
中科院分区：
文献类型：
--
作者：
Li, Linqian;Wei, Bing;Ge, Debiao
本文提出了一种色散介质电磁分析的新方法--场元时域法（FETD）。首先，得到了色散介质中的平面波和矩阵方程。给出了一个包含J（p）和E的迭代方程。在FETD方法中引入辅助微分方程，给出了J（p）和E的时域本构关系的递推公式。然后将这两个方程相结合，得到了辅助微分方程的时域解。最后通过三维数值算例验证了该方法的可行性。
A new technique of Finite-Element Time-Domain (FETD) for electromagnetic analysis of dispersive media is presented. Firstly, the plane wave and matrix equation in dispersive media is obtained. An iteration equation contains J(p) and E is presented. Followed by an introduction of auxiliary differential Equation to the FETD method, a recursive formulation of constitutive for J(p) and E in time domain is given. Then the achievement of Auxiliary Differential Equation Finite-Element Time-Domain (ADE-FETD) is developed through combining the above two equations. Finally, the feasibility of this technique is validated with three-dimension numerical examples.