Title
Macromodeling of transfer functions with higher-order pole multiplicitiesMacromodeling of transfer functions with higher-order pole multiplicities
Author
Faculty/Department
Faculty of Sciences. Mathematics and Computer Science
Research group
Computational modelling en programming
Modeling Of Systems and Internet Communication (MOSAIC)
Publication type
conferenceObject
Publication
New york :Ieee,
Subject
Mass communications
Source (journal)
2007 IEEE WORKSHOP ON SIGNAL PROPAGATION ON INTERCONNECTS
Source (book)
11th IEEE Workshop on Signal Propagation on Interconnects, MAY 13-16, 2007, Ruta di Camogli, ITALY
Volume/pages
(2007), p. 53-56
ISBN
978-1-4244-1223-5
ISI
000257063800012
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Vector Fitting is a rational approximation technique, which is frequently used to calculate accurate macromodels of electrical and electronical structures [1]. The robustness of the technique is obtained by combining the use of a weighted iterative least squares scheme and a well-chosen partial fraction basis. It was discussed in [2] that numerical problems may occur if poles of higher-order multiplicities are required to approximate a frequency response. This paper shows that the Orthonormal Vector Fitting technique [3] solves this problem in a fundamental way.
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