Analysis of millimeter wave scattering by an electrically large metallic grating using wavelet-based algebratic multigrid preconditioned CG method

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)1541-1560
Journal / PublicationInternational Journal of Infrared and Millimeter Waves
Volume21
Issue number9
Publication statusPublished - Sep 2000

Abstract

An effective wavelet based multigrid preconditioned conjugate gradient method is developed to solve electromagnetic large matrix problem for millimeter wave scattering application. By using wavelet transformation we restrict the large matrix equation to a relative smaller matrix and which can be solved rapidly. The solution is prolonged as the new improvement for the conjugate gradient (CG) method. Numerical results show that our developed wavelet based multigrid preconditioned CG method can reach large improvement of computational complexity. Due to the automaticity of wavelet transformation, this method is potential to be a block box solver without physical background.

Citation Format(s)

Analysis of millimeter wave scattering by an electrically large metallic grating using wavelet-based algebratic multigrid preconditioned CG method. / Chen, R. S.; Fang, D. G.; Tsang, K. F.; Yung, Edward K. N.

In: International Journal of Infrared and Millimeter Waves, Vol. 21, No. 9, 09.2000, p. 1541-1560.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal