Analysis of the Shielding Effectiveness of Thin Wire Cages by a Hybrid DGTD-FDTD Method

Analysis of the Shielding Effectiveness of Thin Wire Cages by a Hybrid DGTD-FDTD Method
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混合 DGTD-FDTD 方法分析细线笼的屏蔽效能

DOI:
10.1109/temc.2022.3201385
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发表时间:
2022-12
影响因子:
2.1
通讯作者:
Deng Haochuan
Deng Haochuan
中科院分区:
计算机科学3区
文献类型:
--
作者:
Qian Yang;Bing Wei;Linqian Li;Debiao Ge;Deng Haochuan

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细导线模拟是时域计算电磁法中一个典型的多尺度问题。本文讨论了细线笼的屏蔽效能,这种模型可以归因于复杂的细线结构与多线结。本文采用麦克斯韦方程组的间断Galerkin时域方法,用一维时域有限差分方法构造细线的迭代格式。细线用Holland提出的修正电报员方程表示。在本文中,网格尺寸由待分析的电磁波的波长确定,而不考虑细线的半径。在我们的模型中没有细导线的物理存在,细导线由电流元素表示。所提出的方法支持任意方向的细导线的模拟,所提出的方法可以很容易地处理复杂的导线结构。避免了多尺度建模,大大提高了计算效率。
Thin wire simulation is a typical multiscale problem in time-domain computational electromagnetic methods. This article addresses the shielding effectiveness of thin wire cages, and such models can be attributed to complex thin wire structures with multiwire junctions. The discontinuous Galerkin time-domain method for Maxwell's equations is used in our study, and the one-dimensional finite-difference time-domain method is used to construct the iterative scheme for the thin wire. The thin wire is expressed by the modified telegrapher's equations proposed by Holland. In this article, the mesh size is determined by the wavelength of the electromagnetic wave to be analyzed without considering the radius of the thin wire. There is no physical presence of thin wires in our model, and thin wires are expressed by current elements. The proposed method supports the simulation of arbitrarily oriented thin wires, and the proposed method can easily handle complex wire structures. The calculation efficiency can be greatly improved after avoiding multiscale modeling.
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