Electric circuit element boundary conditions in the finite element method for full-wave passive electromagnetic devices

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-02-23 DOI:10.1186/s13362-022-00122-1

Ciuprina, Gabriela, Ioan, Daniel, Sabariego, Ruth V.

引用次数: 2

Abstract

A natural coupling of a circuit with an electromagnetic device is possible if special boundary conditions, called Electric Circuit Element (ECE), are used for the electromagnetic field formulation. This contribution shows how these ECE boundary conditions can be implemented into the 3D-finite element method for solving coupled full-wave electromagnetic (EM) field-circuit problems in the frequency domain. The frequency response allows the extraction of a reduced order model of the analyzed device, accounting for all the EM field effects. The implementation is based on a weak formulation that uses the electric field strength E strictly inside the domain and a scalar potential V defined solely at the boundary. Edge elements for E are used inside the three-dimensional domain and nodal elements for V are used on its two-dimensional boundary. The weak formulation is described and implemented in the free environment Open Numerical Engineering LABoratory (onelab). The validation is carried out on 3D examples.

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全波无源电磁器件有限元法中的电路元件边界条件

如果在电磁场公式中使用称为电路元件(ECE)的特殊边界条件，则电路与电磁器件的自然耦合是可能的。这一贡献显示了如何将这些ECE边界条件实现到3d有限元方法中，以解决频域的耦合全波电磁(EM)场路问题。频率响应允许提取被分析器件的降阶模型，考虑所有电磁场效应。该实现基于一个弱公式，该公式严格使用域内的电场强度E和仅在边界处定义的标量势V。在三维区域内使用E的边缘元素，在二维边界上使用V的节点元素。在开放数值工程实验室(onelab)的自由环境下对弱公式进行了描述和实现。在三维算例上进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.