Combining rational interpolation with the vector fitting method

Y. S. Mekonnen, José Schutt-Ainé, Jilin Tan, C. Kumar, Dragoslav Milosevic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a method is proposed to improve the initial poles and convergence of the vector fitting method. The procedure takes advantage of the robustness of the rational interpolation method in extracting stable poles over partitioned bandwidth and the numerical stability and fast convergence of the vector fitting method in generating accurate high-order rational approximation. First, the stable poles of the entire frequency range are obtained by partitioning the domain and performing rational interpolation in each bandwidth. Then, the collected poles are used as initial poles to the vector-fitting algorithm to obtain the overall high-order rational approximation. The accuracy and convergence of the standard vector fitting and proposed methods are compared. Examples are provided to demonstrate the advantage of the proposed approach.

Original languageEnglish (US)
Title of host publication14th Topical Meeting on Electrical Performance of Electronic Packaging 2005
Pages51-54
Number of pages4
DOIs
StatePublished - Dec 1 2005
Event14th Topical Meeting on Electrical Performance of Electronic Packaging 2005 - Austin, TX, United States
Duration: Oct 24 2005Oct 26 2005

Publication series

NameIEEE Topical Meeting on Electrical Performance of Electronic Packaging
Volume2005

Other

Other14th Topical Meeting on Electrical Performance of Electronic Packaging 2005
Country/TerritoryUnited States
CityAustin, TX
Period10/24/0510/26/05

ASJC Scopus subject areas

  • Engineering(all)

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