Investigation on the numerical performance of Calderón Multiplicative Preconditioner for electromagnetic scattering and radiation of 3-D open perfect electric conductors

Kang Zhang*, Xiaowen Xu, Mang He

*Corresponding author for this work

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

Abstract

Numerical performance of Caldern Multiplicative Preconditioner (CMP) for the electrical field integral equation (EFIE) of 3-D open perfect electric conductors (PECs) is investigated in this paper. The iteration count for achieving convergence in iteratively solving MoM linear equations from CMP preconditioned EFIE of several PEC scatters or antennas are presented. Numerical experiments show that for the analysis of thin wire-like open PECs especially in certain electric field excitation condition where the induced surface current is mainly along the wire axis, the CMP may be unfortunately helpless to iterative solver in handling EFIE-MoM linear equations. Empirical analysis is addressed that the invalidation of CMP in these cases is due to the fact that the RWG functions have weak ability to simulate surface currents with rotational component.

Original languageEnglish
Title of host publicationICMTCE2011 - Proceedings 2011 IEEE International Conference on Microwave Technology and Computational Electromagnetics
Pages457-461
Number of pages5
DOIs
Publication statusPublished - 2011
Event2011 2nd IEEE International Conference on Microwave Technology and Computational Electromagnetics, ICMTCE2011 - Beijing, China
Duration: 22 May 201125 May 2011

Publication series

NameICMTCE2011 - Proceedings 2011 IEEE International Conference on Microwave Technology and Computational Electromagnetics

Conference

Conference2011 2nd IEEE International Conference on Microwave Technology and Computational Electromagnetics, ICMTCE2011
Country/TerritoryChina
CityBeijing
Period22/05/1125/05/11

Keywords

  • Caldern Multiplicative Preconditioner
  • Electric field integral equation (EFIE)
  • numerical methods
  • preconditioning

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