A two dimensional (2-D) finite-difference time-domain (FDTD) method based on a novel finite difference scheme is developed to eliminate the numerical dispersion errors. In this paper, the numerical dispersion and stability analysis of the new scheme are given; these show that the proposed method is nearly dispersionless and stable for a larger time step than the standard FDTD method for a monochromatic frequency. The new algorithm is also verified for two cases.
Bibliographical noteFunding Information:
Manuscript received October 4, 2005; revised April 17, 2006. This work was supported by the Basic Research Fund of Yonsei University (2000-1-0176). I.-S. Koh is with the Graduate School of Information Technology and Telecommunications, Inha University, Incheon 402-751, Korea (e-mail: ikoh@ inha.ac.kr). H. Kim, J.-M. Lee, and J.-G. Yook are with the Department of Electrical and Electronics Engineering, Yonsei University, Seoul 120-749, Korea. C. S. Pil is with the Department of Electronic Engineering, Inha University, Incheon 402-751, Korea. Color versions of Figs. 2–8 are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TAP.2006.884288
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering