Comparative study of preconditioners for the FFT-JVIE solution of highly inhomogeneous dielectric objects

Si Zhuo Gu, Da Miao Yu, Xiao Min Pan*, Xin Qing Sheng

*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

It was recently reported that the volume integral equation formulation based on equivalent volumetric currents (JVIE) can be a suitable choice to solve the dynamic electromagnetic scattering from highly inhomogeneous objects. This work presents a comparative study of some relatively cheap preconditioning strategies numerically in terms of the Generalized Minimum Residual (GMRES) iterative solver. The numerical experiments on a human head model show that different preconditioners behavior differently in improving the convergence.

Original languageEnglish
Title of host publication2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781733509626
DOIs
Publication statusPublished - 1 Aug 2021
Event2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021 - Virtual, Hamilton, Canada
Duration: 1 Aug 20215 Aug 2021

Publication series

Name2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021

Conference

Conference2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
Country/TerritoryCanada
CityVirtual, Hamilton
Period1/08/215/08/21

Keywords

  • FFT
  • JVIE
  • Preconditioner

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