Abstract
In this letter, the quasi-Helmholtz projectors are applied to address numerical cancellation of augmented electric field integral equation (A-EFIE). The projectors rescale the term overline {bf V} cdot i{k}_0{bf j} and right-hand side to guarantee that the solution is stable at very low frequency. The improved system is full rank without removing the singularity caused by charge neutrality. Compared to the EFIE with quasi-Helmholtz projectors, this letter presents a better convergence performance and takes less computational cost. The numerical results show that the solution of both scattering problems and circuit problems can ensure the accuracy in the low-frequency regime.
Recommended Citation
W. J. Chen et al., "Improved A-EFIE System For Electromagnetic Simulation In Low Frequency Regime," IEEE Antennas and Wireless Propagation Letters, vol. 21, no. 9, pp. 1752 - 1756, Institute of Electrical and Electronics Engineers, Sep 2022.
The definitive version is available at https://doi.org/10.1109/LAWP.2022.3179270
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Augment electric field integral equation (A-EFIE); low frequency; numerical cancellation; quasi-Helmholtz projectors
International Standard Serial Number (ISSN)
1548-5757; 1536-1225
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Sep 2022
