Low-order macromodels of planar waveguides exhibiting geometric, material, and layout uncertainty

Aosheng Rong, Andreas C Cangellaris

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

Abstract

A methodology is presented for the development of low-order macromodels of planar waveguides exhibiting uncertainty in the cross-sectional geometry of the conducting strips, the insulating material in which the waveguide is immersed, and in the waveguide layout. The proposed methodology makes use of stochastic collocation and the ideas of polynomial chaos expansion to capture the uncertainty in geometric parameters in the matrix representation of a finite-element/finite-difference model of the waveguide. Subsequently, a Laguerre-based, model order reduction process is used to generate a stochastic model of dimension significantly smaller than that of the original one. The accuracy of the proposed method is demonstrated through its application to the transient simulation of broadband signal transmission in a multi-conductor planar interconnect.

Original languageEnglish (US)
Title of host publicationIMS 2012 - 2012 IEEE MTT-S International Microwave Symposium
DOIs
StatePublished - Oct 3 2012
Event2012 IEEE MTT-S International Microwave Symposium, IMS 2012 - Montreal, QC, Canada
Duration: Jun 17 2012Jun 22 2012

Publication series

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

Other

Other2012 IEEE MTT-S International Microwave Symposium, IMS 2012
CountryCanada
CityMontreal, QC
Period6/17/126/22/12

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Keywords

  • Finite element method
  • Model order reduction
  • Multiconductor transmission lines
  • Planar waveguides
  • Statistical modeling
  • Transient simulation

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Rong, A., & Cangellaris, A. C. (2012). Low-order macromodels of planar waveguides exhibiting geometric, material, and layout uncertainty. In IMS 2012 - 2012 IEEE MTT-S International Microwave Symposium [6259577] (IEEE MTT-S International Microwave Symposium Digest). https://doi.org/10.1109/MWSYM.2012.6259577