Higher-order Method of Moments Analysis of Waveguide with Irregular Cross-sections

Authors

  • Ning Ding School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China https://orcid.org/0000-0002-5256-4727
  • Zhongchao Lin School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China
  • Lei Yin School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China
  • Xunwang Zhao School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China
  • Yu Zhang School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China

DOI:

https://doi.org/10.13052/2025.ACES.J.400201

Keywords:

Eigenvalues, finite element method (FEM), higher-order method of moments (HOMoM), irregular cross-sections, mode-matching (MM), waveports

Abstract

Antennas fed by waveguides with irregular cross-sections are efficiently simulated through the hybridization of the mode-matching (MM) method and the higher-order method of moments (HOMoM). To obtain the waveguide modes required in the MM method, a 2-D finite element method (FEM) is utilized and combined with the hybrid MM/HOMoM method, which enables the proposed method to model irregular waveports. The accuracy and efficiency of the proposed method are demonstrated by simulating log-periodic antennas (LPAs) and an asymmetric single-ridge slot waveguide antenna.

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Author Biographies

Ning Ding, School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China

Ning Ding received the B.S. degree from Xidian University, Xi’an, China, in 2017, and is currently working toward the Ph.D. degree at Xidian University. His current research interest is computational electromagnetics.

Zhongchao Lin, School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China

Zhongchao Lin received the B.S. and Ph.D. degrees from Xidian University, Xi’an, China, in 2011 and 2016, respectively. In 2016, he joined Xidian University 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.

Lei Yin, School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China

Lei Yin was born in Yinchuan,Ningxia, China, in 1995. He received the B.S. degree in electronic and information engineering from Xidian University, Xi’an, China, in 2017. He is currently pursuing the Ph.D. degree with Xidian University, Xi’an, China. His current research interests include computational electromagnetic, parallel computing, and electromagnetic radiation and coupling.

Xunwang Zhao, School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China

Xunwang Zhao 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 Investigator, he works on several projects, including the project of NSFC. His research interests include computational electromagnetics and electromagnetic scattering analysis.

Yu Zhang, School of Electronic Engineering Xidian University, Xi’an 71000, China , Shaanxi Key Laboratory of Large-Scale Electromagnetic Computing Xi’an 71000, China

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, Syracuse, NY, USA, 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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Published

2025-02-28

How to Cite

[1]
N. . Ding, Z. . Lin, L. . Yin, X. . Zhao, and Y. . Zhang, “Higher-order Method of Moments Analysis of Waveguide with Irregular Cross-sections”, ACES Journal, vol. 40, no. 02, pp. 89–95, Feb. 2025.

Issue

2025: Vol 40 Iss 2

Section

Novel CEM methods & applications

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