## Abstract In this letter, a high order accurate FDTD method is proposed, in which a fourth‐order accurate staggered backward differentiation integrator is used for time marching and a new finite difference scheme named the optimal central finite difference scheme is used for spatial discretizatio
High-order US-FDTD based on the weighted finite-difference method
✍ Scribed by Fei Xiao; Xiaohong Tang; Haihong Ma
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 80 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
Although unconditionally stable (US), the accuracy of ADI‐FDTD is not so high as that of conventional FDTD. In this paper, a high‐order US‐FDTD based on the weighted finite‐difference method is presented. A strict analysis of stability shows that it is unconditionally stable. And, more importantly, its numerical‐dispersion performance is superior to that of ADI‐FDTD. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 142–144, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20749
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