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A Calderón‐preconditioned single source combined field integral equation for analysis of bi‐isotropic object
Author(s) -
Shi Yan,
Tian ChengYi,
Liang ChangHong
Publication year - 2014
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.2038
Subject(s) - isotropy , integral equation , electric field integral equation , mathematical analysis , field (mathematics) , spurious relationship , mathematics , magnetic field , physics , optics , quantum mechanics , statistics , pure mathematics
In this paper, a Calderón‐preconditoned single source combined field integral equation (SSCFIE) has been developed to analyze electromagnetic scattering from bi‐isotropic objects. The field decomposition method is adopted to split the homogeneous bi‐isotropic media into two uncoupled isotropic media instead of direct calculation of complicated Green's function in bi‐isotropic material. Unlike dual source integral equation, the Calderón‐preconditioned single source electric and magnetic integral equations in the presence of bi‐isotropic media are constructed and combined to make the proposed algorithm free from dense mesh breakdown and spurious resonance. Numerical results show good performance of the proposed algorithm. Copyright © 2014 John Wiley & Sons, Ltd.