A Novel 3-D DGTD-FDTD Hybrid Method withOne Overlapping Virtual Layer

作者

  • Qingkai Wu School of Electronic Engineering Xidian University, Xi’an, 710071, China
  • Kunyi Wang School of Electronic Engineering Xidian University, Xi’an, 710071, China
  • Zhongchao Lin School of Electronic Engineering Xidian University, Xi’an, 710071, China
  • Yu Zhang School of Electronic Engineering Xidian University, Xi’an, 710071, China
  • Xunwang Zhao School of Electronic Engineering Xidian University, Xi’an, 710071, China

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https://doi.org/10.13052/2023.ACES.J.380802

关键词:

Discontinuous Galerkin time-domain method, finite-difference time-domain method, hybrid method, transient analysis

摘要

Compared with the traditional finite difference time-domain (FDTD) method, the discontinuous Galerkin time-domain (DGTD) method may face the issue of intense computation. In this paper, a novel 3-D DGTD-FDTD hybrid method is proposed to dramatically reduce the unknowns of the DGTD method. Instead of the common mass-lumped elements, this virtual layer of the Yee grid is implemented on the intersecting boundary, which simplifies the mesh generation and reduces the number of unknowns. To validate the proposed method, two examples of sphere scattering and horn antenna are considered. The simulation results demonstrate the effectiveness of the proposed method.

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Qingkai Wu was born in Yangzhou, Jiangsu, China, in 1997. He received the B.S. degree in electronic science and technology from Xidian University, Xi’an, China, in 2020. He is currently pursuing the Ph.D. degree with Xidian University, Xi’an, China. His current research interests include transient electromagnetic analysis.

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Kunyi Wang was born in Anqing, Anhui, China, in 1996. He received the B.S. degree in electronic information engineering from Tianjin University of Technology, Tianjin, China, in 2019. He is currently pursuing the Ph.D. degree with Xidian University, Xi’an, China. His current research interests include transient electromagnetic analysis.

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Zhongchao Lin was born in Hubei, China, in 1988. He received the B.S. and Ph.D. degrees from Xidian University, Xi’an, China, in 2011 and 2016, respectively. He joined Xidian University, in 2016, as a post doctoral fellow, where he was lately promoted as an associate professor. His research interests include large-scale computational electromagnetics, scattering, and radiation electromagnetic analysis.

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Yu Zhang received the B.S., M.S., and Ph.D. degrees from Xidian University, Xi’an, China, in 1999, 2002, and 2004, respectively. In 2004, he joined Xidian University as a faculty member. He was a visiting scholar and an adjunct professor with Syracuse University from 2006 to 2009. As a principal investigator, he works on projects, including the Project of NSFC. He has authored four books: Parallel Computation in Electromagnetics (Xidian University Press, 2006), Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain (Wiley IEEE, 2009), Time and Frequency Domain Solutions of EM Problems Using Integral Equations and a Hybrid Methodology (Wiley, 2010), and Higher Order Basis Based Integral Equation Solver (Wiley, 2012), as well as more than 100 journal articles and 40 conference papers.

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Xunwang Zhao was born in Shanxi, China, in 1983. He received the B.S. and Ph.D. degrees from Xidian University, Xi’an, China, in 2004 and 2008, respectively. He joined Xidian University, in 2008, as a faculty member, where he was lately promoted as a full professor. He was a visiting scholar with Syracuse University, Syracuse, NY, USA, from December 2008 to April 2009. As a principal inves tigator, he works on several projects, including the project of NSFC. His research interests include computational electromagnetics and electromagnetic scattering analysis.

参考

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已出版

2023-08-31

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[1]
Q. . Wu, K. . Wang, Z. . Lin, Y. . Zhang, 和 X. . Zhao, 《A Novel 3-D DGTD-FDTD Hybrid Method withOne Overlapping Virtual Layer》, ACES Journal, 卷 38, 期 08, 页 558–565, 8月 2023.

期

2023: Vol 38 Iss 8

栏目

General Submission

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