Time-domain electric-field integral equation with central finite difference

Baek Ho Jung, Tapan Kumar Sarkar

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


In this paper, we present a new formulation using the time-domain electric-field integral equation (TD-EFIE) to obtain a transient scattering response from arbitrarily shaped conducting bodies. The time derivative of the magnetic vector potential is approximated with a central finite difference, and the scalar potential is time averaged by dividing it into two terms. This approach with an implicit method using central-difference results in accurate and stable transient scattering responses from conducting objects. Detailed mathematical steps are included, and several numerical results are presented.

Original languageEnglish (US)
Pages (from-to)429-435
Number of pages7
JournalMicrowave and Optical Technology Letters
Issue number6
StatePublished - Dec 20 2001


  • Finite-difference methods
  • Integral equation
  • Time-domain electromagnetics

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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