A Novel Multibranch-Linear-Linear Basis Function Based Adaptive Accuracy Enhanced Method for MFIE and CFIE From Multiscale PEC Targets

Authors

  • Yu Wang Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China
  • Jie Cheng Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China and Key Laboratory for Physical Electronics and Devices of the Ministry of Education School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
  • Yu Zhang Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China
  • Lei Yu Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China
  • Liu-Yang Shen Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China
  • Sheng Liu Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China

DOI:

https://doi.org/10.13052/2026.ACES.J.410501

Keywords:

Adaptive accuracy enhanced (AAE) method, combined-field integral equation (CFIE), magnetic-field integral equation (MFIE), multibranch RWG basis function (MB-LL), multiscale objects

Abstract

In this paper, we propose a novel Multibranch-Linear-Linear basis function based adaptive accuracy enhanced (MB-LLB-AAE) method to solve the scattering problem from multiscale perfect electric conductor (PEC) targets. The calculation accuracy of traditional magnetic-field integral equation (MFIE) and combined field integral equation (CFIE) is not as good as that of electric-field integral equation (EFIE) under the same mesh size. The proposal of MBLL basis function has solved the accuracy problem of MFIE and CFIE when calculating multiscale PEC targets to a certain extent. However, a MB-LL basis function has two unknowns on a common edge, thus generating a prohibitive computational cost when calculating multiscale targets. Based on this problem, we propose the novel MB-LLB-AAE method, which not only effectively reduces the consumption when calculating multiscale targets, but also maintains an accuracy similar to that of using the MB-LL basis function only. Several numerical examples prove the advantages of the proposed method.

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Author Biographies

Yu Wang, Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China

Yu Wang is a doctoral graduate from Xi’an University of Electronic Science and Technology, China. Currently, they work at the Key Laboratory of Advanced Science and Technology on High Power Microwave of Northwest Institute of Nuclear Technology, mainly engaged in research on electromagnetic calculation and electromagnetic compatibility.

Jie Cheng, Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China and Key Laboratory for Physical Electronics and Devices of the Ministry of Education School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Jie Cheng, doctor, studied at Xi’an Jiaotong University, China. Currently, they work at the Key Laboratory of Advanced Science and Technology on High Power Microwave of Northwest Institute of Nuclear Technology.

Yu Zhang, Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China

Yu Zhang is a doctoral graduate from National University of Defense Technology, China. Currently, they work at the Key Laboratory of Advanced Science and Technology on High Power Microwave of Northwest Institute of Nuclear Technology, mainly engaged in research on electromagnetic compatibility.

Lei Yu, Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China

Lei Yu is graduate from Army Engineering University, China. Currently, they work at the Key Laboratory of Advanced Science and Technology on High Power Microwave of Northwest Institute of Nuclear Technology, mainly engaged in research on electrical system.

Liu-Yang Shen, Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China

Liu-Yang Shen is a doctoral graduate from Lanzhou University, China. Currently, they work at the Key Laboratory of Advanced Science and Technology on High Power Microwave of Northwest Institute of Nuclear Technology, mainly engaged in research on ionization protection.

Sheng Liu, Key Laboratory of Advanced Science and Technology on High Power Microwave Northwest Institute of Nuclear Technology, Xi’an 710049, China

Sheng Liu is a doctoral graduate from Tsinghua University, China. Currently, they work at the Key Laboratory of Advanced Science and Technology on High Power Microwave of Northwest Institute of Nuclear Technology, mainly engaged in research on drive source technology.

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Published

2026-09-19

How to Cite

[1]
Y. Wang, J. Cheng, Y. Zhang, L. Yu, L.-Y. Shen, and S. Liu, “A Novel Multibranch-Linear-Linear Basis Function Based Adaptive Accuracy Enhanced Method for MFIE and CFIE From Multiscale PEC Targets”, ACES Journal, vol. 41, no. 5, pp. 389–397, Sep. 2026.

Issue

2026: Vol 41 Iss 5

Section

General Submission

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