3-D isotropic dispersion FDTD algorithm for rectangular grid

Woo Tae Kim, Il Suek Koh, Jong Gwan Yook

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


An updated equation of the 3-D isotropic dispersion finite-difference time-domain (ID-FDTD) scheme is proposed for a rectangular grid. The scaling and weighting factors are formulated to reduce the anisotropic dispersion error. Especially, the least mean square (LMS) method is used to calculate the weighting factors to minimize the fluctuation of the dispersion over an entire spatial domain. The dispersion behavior of the proposed ID-FDTD scheme is characterized. Then, the formulated 3-D ID-FDTD scheme is verified for two scattering problems.

Original languageEnglish
Article number5473032
Pages (from-to)522-525
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Publication statusPublished - 2010

Bibliographical note

Funding Information:
Manuscript received April 19, 2010; revised May 13, 2010; accepted May 18, 2010. Date of publication May 27, 2010; date of current version June 10, 2010. This work was supported in part by the Agency for Defense Development, South Korea (UC080039FD). W.-T. Kim and J.-G. Yook are with the Department of Electrical and Electronics Engineering, Yonsei University, Seoul 120-749, South Korea. I.-S. Koh is with the Graduate School of Information Technology and Telecommunication, Inha University, Incheon 402-751, South Korea (e-mail: ikoh@inha.ac.kr). Color versions of one or more of the figures in this letter are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/LAWP.2010.2051313

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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