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Fast multi‐frequency extraction of 3D impedance based on boundary element method
Author(s) -
Yu Wenjian,
Yan Changhao,
Wang Zeyi
Publication year - 2008
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.23597
Subject(s) - fast fourier transform , boundary element method , computation , boundary (topology) , microwave , electrical impedance , algorithm , computer science , extraction (chemistry) , computational science , electronic engineering , mathematical analysis , mathematics , finite element method , engineering , electrical engineering , telecommunications , structural engineering , chemistry , chromatography
For the boundary element method used in an impedance extractor FastImp, a scheme to handle the boundary integrals is proposed to accelerate the computation for multiple frequencies. Several techniques are combined in the scheme. The near‐field integrals are calculated with a series expansion technique and an approximate formula, whereas the precorrected FFT algorithm is employed for the far‐field integrals. Numerical experiments show that the proposed method is several times faster than FastImp for multi‐frequency extraction, while preserving high accuracy. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2191–2197, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23597