Novel Characteristic Mode Basis Functions Accelerating Iteration Convergence of CMM for Analyzing Electromagnetic Scattering Problems

Authors

  • Fei Guo School of Electrical and Information Engineering Anhui University of Science and Technology, Huainan, 232001, China
  • Zhonggen Wang School of Electrical and Information Engineering Anhui University of Science and Technology, Huainan, 232001, China
  • Yufa Sun School of Electronics and Information Engineering Anhui University, Hefei, 230039, China
  • Wenyan Nie School of Mechanical and Electrical Engineering Huainan Normal University, Huainan, 232001, China
  • Pan Wang School of Electrical and Information Engineering Anhui University of Science and Technology, Huainan, 232001, China
  • Juan Wu School of Electrical and Information Engineering Anhui University of Science and Technology, Huainan, 232001, China

DOI:

https://doi.org/10.13052/2023.ACES.J.380806

Keywords:

Characteristic mode, method of moments, reduced matrix, singular value decomposition

Abstract

In this study, a novel characteristic mode basis function construction method is proposed to solve the problems of low efficiency and slow convergence of the iterative solution of the characteristic mode method. First, the characteristic modes (CMs) of each extended block are calculated separately by dividing objects, the CMs construction efficiency is improved for the decreased matrix dimensionality. Next, the effective CMs are selected as basis functions according to the modal significances. Finally, to improve the poor conditional number of the reduced matrix for the block extension, the singular value decomposition is used to enhance the orthogonality among these basis functions. Several numerical calculations show that the proposed method has significant efficiency and accuracy.

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Author Biographies

Fei Guo, School of Electrical and Information Engineering Anhui University of Science and Technology, Huainan, 232001, China

Fei Guo received the B.E degree from Anqing Normal University in 2021. He is currently pursuing the M.S degree in Anhui University of Science and Technology. His current research interest includes computational electromagnetics.

Zhonggen Wang, School of Electrical and Information Engineering Anhui University of Science and Technology, Huainan, 232001, China

Zhonggen Wang received the Ph.D. degree in electromagnetic field and microwave technique from the Anhui University of China (AHU), Hefei, P. R. China, in 2014. Since 2014, he has been with the School of Electrical and Information Engineering, Anhui University of Science and Technology. His research interests include computational electromagnetics, array antennas, and reflect arrays.

Wenyan Nie, School of Mechanical and Electrical Engineering Huainan Normal University, Huainan, 232001, China

Wenyan Nie is a professor at Huainan Normal University. She received the B.S. and M.S degrees from Anhui University of Science and Technology in 2007 and 2012, respectively. Her research interests include computational electromagnetic methods, antenna theory and design.

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Published

2023-08-31

How to Cite

[1]
F. . Guo, Z. . Wang, Y. . Sun, W. . Nie, P. . Wang, and J. . Wu, “Novel Characteristic Mode Basis Functions Accelerating Iteration Convergence of CMM for Analyzing Electromagnetic Scattering Problems”, ACES Journal, vol. 38, no. 08, pp. 594–601, Aug. 2023.

Issue

2023: Vol 38 Iss 8

Section

General Submission

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