Unified GSTC-FDTD Algorithm for the Efficient Electromagnetic Analysis of 2D Dispersive Materials

IF 1.6 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of electromagnetic engineering and science Pub Date : 2023-09-30 DOI:10.26866/jees.2023.5.r.187

Sangeun Jang, Jae-Woo Baek, Jeahoon Cho, Kyung-Young Jung

引用次数: 0

Abstract

The finite-difference time-domain (FDTD) method has been widely used for the electromagnetic wave analysis of complex media. Conventional FDTD analyses of very thin two-dimensional (2D) dispersive materials require overwhelming computing resources because they should use very refined FDTD spatial grids. In this work, we propose a computationally efficient and unified FDTD formulation for 2D dispersive materials based on a combination of the generalized sheet transition condition (GSTC) and the modified Lorentz dispersion model. The proposed FDTD formulation can lead to a significant improvement in computational efficiency compared to the conventional FDTD method, while maintaining high accuracy. Numerical examples validate the improved computational efficiency of the proposed FDTD formulation.

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二维色散材料高效电磁分析的统一GSTC-FDTD算法

时域有限差分法(FDTD)已广泛应用于复杂介质的电磁波分析。传统的时域有限差分法分析非常薄的二维(2D)色散材料需要大量的计算资源，因为它们需要使用非常精细的时域有限差分空间网格。在这项工作中，我们提出了一种基于广义片过渡条件(GSTC)和修正洛伦兹色散模型相结合的二维色散材料的计算效率和统一的FDTD公式。与传统的时域有限差分法相比，所提出的时域有限差分公式可以显著提高计算效率，同时保持较高的精度。数值算例验证了所提时域有限差分公式计算效率的提高。

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

Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.90

自引率

17.40%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.