TY - JOUR
T1 - Flexible GMRES-FFT method for fast matrix solution
T2 - Application to 3D dielectric bodies electromagnetic scattering
AU - Chen, Ru-Shan
AU - Ding, D. Z.
AU - Fan, Z. H.
AU - Yung, Edward Kai-Ning
AU - Chan, C. H.
PY - 2004/11
Y1 - 2004/11
N2 - In this paper, the electromagnetic wave scattering is analysed by the efficient Krylov subspace iterative fast Fourier transform (FFT) technique in terms of the electric field integral equation (EFIE) for a dielectric body of general shape, inhomogeneity, and anisotropy. However, when the permittivity of the scatter becomes large, the convergence rate of Krylov subspace iterative methods slow down. Therefore, the inner-outer flexible generalized minimum residual method (FGMRES) is used to accelerate the iteration. As a result, nearly 10 times convergence improvement is achieved for high permittivity cases. Copyright © 2004 John Wiley & Sons, Ltd.
AB - In this paper, the electromagnetic wave scattering is analysed by the efficient Krylov subspace iterative fast Fourier transform (FFT) technique in terms of the electric field integral equation (EFIE) for a dielectric body of general shape, inhomogeneity, and anisotropy. However, when the permittivity of the scatter becomes large, the convergence rate of Krylov subspace iterative methods slow down. Therefore, the inner-outer flexible generalized minimum residual method (FGMRES) is used to accelerate the iteration. As a result, nearly 10 times convergence improvement is achieved for high permittivity cases. Copyright © 2004 John Wiley & Sons, Ltd.
KW - Electromagnetic wave scattering
KW - Fast fourier transform
KW - FGMRES
KW - GMRES
KW - Krylov subspace iterative methods
UR - http://www.scopus.com/inward/record.url?scp=10444247343&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-10444247343&origin=recordpage
U2 - 10.1002/jnm.554
DO - 10.1002/jnm.554
M3 - RGC 21 - Publication in refereed journal
SN - 0894-3370
VL - 17
SP - 523
EP - 537
JO - International Journal of Numerical Modelling: Electronic Networks, Devices and Fields
JF - International Journal of Numerical Modelling: Electronic Networks, Devices and Fields
IS - 6
ER -