A Flexible Numerical Integration Strategy for Accurate Simulation of Cavity Scattering Problems

Dan Guo, Xiao Wei Huang*, Xin Qing Sheng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Accurately simulating electromagnetic scattering within cavities presents significant challenges due to the intricate wave behavior. Beyond the well-known convergence issues, this work focuses on the sensitivity of computational accuracy during numerical implementation. Our research identifies that the accuracy of the integral equation (IE) method is significantly influenced by the Gaussian integration rule. Specifically, achieving high accuracy requires high-order Gaussian integration rules, which in turn increase computational time. To address this issue, we propose a flexible numerical integration strategy (FNIS) that adaptively selects integration rules based on the distance between basis and test functions. Numerical examples validate our approach, demonstrating improved computational efficiency while maintaining high accuracy.

Original languageEnglish
Title of host publication2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350355581
DOIs
Publication statusPublished - 2024
Event2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024 - Xi'an, China
Duration: 16 Aug 202419 Aug 2024

Publication series

Name2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024 - Proceedings

Conference

Conference2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024
Country/TerritoryChina
CityXi'an
Period16/08/2419/08/24

Keywords

  • cavity
  • electromagnetic scattering (EM)
  • integral equation (IE)
  • integral rules
  • method of moments (MoM)

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