Parallel Dispersive FDTD Method Based on the Quadratic Complex Rational Function

Sung Min Park, Eun Ki Kim, Yong Bae Park, Saehoon Ju, Kyung Young Jung

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Recently, the quadratic complex rational function (QCRF) function was proposed for accurate finite-difference time-domain (FDTD) dispersive modeling. First, this letter discusses two implementations of QCRF-FDTD to a zeroth-order temporal derivative term and it is observed that the numerical accuracy of the double averaging implementation is better than that of the direct implementation. Second, this work presents a fast QCRF-FDTD algorithm by employing a parallel processing algorithm. The proposed parallel QCRF-FDTD is validated in terms of the speedup fact and the computational accuracy. Finally, we analyze the shielding effectiveness of large-scale concrete structures by using our parallel QCRF-FDTD.

Original languageEnglish
Article number7137633
Pages (from-to)425-428
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume15
DOIs
Publication statusPublished - 2016 Jan 1

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Keywords

  • Dispersive media
  • Parallel processing
  • finite-difference time-domain (FDTD) methods

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