Time-domain augmented EFIE and its marching-on-in-degree solution

Yan Shi, Jianming Jin

Research output: Contribution to journalArticle

Abstract

A time-domain augmented electric field integral equation (TDAEFIE) and its marching-on-in-degree (MOD) solution are presented for analysis of transient electromagentic responses from three-dimensional closed conducting bodies of arbitrary shape.By enforcing a condition on the normal component of the electric flux density, the TDAEFIE eliminates the potential internal resonance problem of the time-domain electric field integral equation (TDEFIE) algorithm. With the use of weighted Laguerre polynomials as entire-domain temporal basis functions, the MOD solution overcomes the late-time instability problem that often occurs in the marching-on-in-time (MOT) approach. Compared with the MOD solution of the time-domain combined field integral equation (TDCFIE), the MOD solution of the TDAEFIE is more efficient because it takes less computational time for calculating the matrix elements and the matrix-vector multiplications related to the excitation at the right-hand side of the matrix equation. Numerical results are presented to illustrate the good performance of the TDAEFIE algorithm. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1439-1444, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26015

Original languageEnglish (US)
Pages (from-to)1439-1444
Number of pages6
JournalMicrowave and Optical Technology Letters
Volume53
Issue number6
DOIs
StatePublished - Jun 1 2011

Keywords

  • marching-on-in- degree
  • marching-on-in-time
  • time-domain augmented electric field integral equation
  • time-domain combined field integral equation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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