Real-part sufficiency and its application to the rational function fitting of passive electromagnetic responses

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

Abstract

For passive networks real-part sufficiency describes the fact that their driving-point impedance or admittance is uniquely defined in terms of its real part alone. We have exploited this fact in the development of a methodology for the generation of passive rational function approximations of electromagnetic transfer functions. More specifically, by utilizing in the fitting process only data for the real part of the driving-point impedance or admittance, our methodology attempts to ensure the passivity of the rational fit by construction. This paper reports several improvements in our methodology, which provide for enhanced accuracy in the fitting of broadband data and improved robustness and computational efficiency of the fitting algorithm. The improved algorithm is demonstrated through its application to the rational fitting of the driving point impedance of interconnect circuits using both numerically-obtained and measured data over multi-GHz bandwidths.

Original languageEnglish (US)
Title of host publication2007 IEEE MTT-S International Microwave Symposium Digest
Pages99-102
Number of pages4
DOIs
StatePublished - Oct 2 2007
Event2007 IEEE MTT-S International Microwave Symposium, IMS 2007 - Honolulu, HI, United States
Duration: Jun 3 2007Jun 8 2007

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Other

Other2007 IEEE MTT-S International Microwave Symposium, IMS 2007
Country/TerritoryUnited States
CityHonolulu, HI
Period6/3/076/8/07

Keywords

  • Interconnect circuits
  • Passive network synthesis
  • Rational approximation

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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