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Fast broadband analysis of microstrip by interpolating both impedance and preconditioning matrices with MBPE
Author(s) -
Liu Zhiwei,
Li Mengmeng,
Zhang Guozhong,
Chen Rushan
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26155
Subject(s) - microstrip , impedance parameters , microwave , broadband , wideband , sparse matrix , electronic engineering , interpolation (computer graphics) , matrix (chemical analysis) , computation , electrical impedance , algorithm , mathematics , computer science , mathematical analysis , telecommunications , engineering , physics , materials science , electrical engineering , quantum mechanics , frame (networking) , composite material , gaussian
An interpolation scheme using model‐based parameter estimation (MBPE) for fast analysis of the microstrip structures over a wideband is proposed.The microstrip structures are analyzed by the mixed potential integral equation with the generated dense impedance matrix partitioned and compressed hierarchically by the UV method. The linear systems are solved by the generalized minimal residual method with its convergence accelerated by the sparse approximate inversion (SAI) preconditioning technique. Over a wide frequency band, both the near field impedance matrix and the SAI preconditioning matrix are interpolated by MBPE. Numerical results show that the proposed method can reduce the computation time significantly. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26155