TY - GEN
T1 - A Flexible Numerical Integration Strategy for Accurate Simulation of Cavity Scattering Problems
AU - Guo, Dan
AU - Huang, Xiao Wei
AU - Sheng, Xin Qing
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - 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.
AB - 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.
KW - cavity
KW - electromagnetic scattering (EM)
KW - integral equation (IE)
KW - integral rules
KW - method of moments (MoM)
UR - http://www.scopus.com/inward/record.url?scp=85207508394&partnerID=8YFLogxK
U2 - 10.1109/ACES-China62474.2024.10699729
DO - 10.1109/ACES-China62474.2024.10699729
M3 - Conference contribution
AN - SCOPUS:85207508394
T3 - 2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024 - Proceedings
BT - 2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024
Y2 - 16 August 2024 through 19 August 2024
ER -