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Fast analysis of microwave‐integrated circuits using the loose GMRES‐FFT method
Author(s) -
Rui P.L.,
Chen R.S.,
Feng X. P.,
Mo L.,
Young Edward K.N.
Publication year - 2005
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20101
Subject(s) - fast fourier transform , generalized minimal residual method , microstrip , conjugate gradient method , classification of discontinuities , microwave , fourier transform , integral equation , mathematics , algorithm , residual , electronic engineering , computer science , mathematical analysis , telecommunications , engineering
In this article, the microstrip circuit is analyzed in terms of the mixed‐potential integral equation (MPIE) by means of the rooftop‐function expansion and the blaze‐function testing technique, and the integral equation is solved using the loose generalized minimal residual fast Fourier transform (LGMRES‐FFT) method. Our numerical calculations show that LGMRES‐FFT can converge faster than the conjugate gradient‐fast Fourier transform (CG‐FFT) method. Some typical microstrip discontinuities are analyzed and the good results obtained demonstrate the validity of the proposed algorithm. © 2005 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2005.