SPICE lumped circuit subcell model for the discontinuous galerkin finite-element time-domain method

Bo Zhao, John C. Young, Stephen D. Gedney

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A SPICE lumped circuit subcell model is formulated within the discontinuous Galerkin finite-element time-domain (DGFETD) discretization of Maxwell's equations. A fourth-order exponential time difference (ETD) algorithm is used for circuits that lead to stiff systems. The ETD method reduces to a standard fourth-order Runge-Kutta (RK4) time-integration for nonstiff regions. A number of test cases, including a microstrip transmission line terminated with general RLC networks, load arrays, and a diode detector are presented for the validation of the proposed hybrid DGFETD/SPICE solution method.

Original languageEnglish
Article number6248187
Pages (from-to)2684-2692
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Volume60
Issue number9
DOIs
StatePublished - 2012

Bibliographical note

Funding Information:
Manuscript received September 16, 2011; revised May 16, 2012; accepted June 04, 2012. Date of publication July 24, 2012; date of current version August 28, 2012. This work was supported in part by the U.S. Air Force Office of Scientific Research under Prime Contract FA9550-10-C-0121.

Keywords

  • Circuit model
  • SPICE
  • discontinuous Galerkin time-domain (DGTD)
  • finite element

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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