Rational function fitting of electromagnetic transfer functions from frequency-domain and time-domain data

Se Jung Moon, Andreas C Cangellaris

Research output: Contribution to journalConference article

Abstract

This paper presents a new methodology for synthesis of broadband equivalent circuits for multi-port high speed interconnect systems from numerically obtained and/or measured frequency-domain and time-domain response data. The equivalent circuit synthesis is based on the rational function fitting of admittance matrix, which combines the frequencydomain vector fitting process VECTFIT with its time-domain analog TDVF to yield a robust and versatile fitting algorithm. The generated rational fit is directly converted into a SPICE-compatible circuit after passivity enforcement. The accuracy of the resulting algorithm is demonstrated through its application to the fitting of the admittance matrix of a power/ground plane structure.

Original languageEnglish (US)
Article number4015248
Pages (from-to)1609-1612
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
DOIs
StatePublished - Dec 1 2006
Event2006 IEEE MTT-S International Microwave Symposium Digest - San Francisco, CA, United States
Duration: Jun 11 2006Jun 16 2006

Keywords

  • Rational function fitting
  • TDVF
  • VECTFIT

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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