| 一种新的FDTD差分网格 |
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| 引用本文： | 王建永,赵长青,张敏.一种新的FDTD差分网格[J].三峡大学学报(自然科学版),2006,28(1):90-93. |
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| 作者姓名： | 王建永 赵长青 张敏 |
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| 作者单位： | 河海大学,数理部,江苏,常州,213022 |
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| 基金项目： | 河海大学校科研和教改项目 |
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| 摘 要： | 提出了一种新的时域有限差分法(FDTD)差分网格,使电场各分量位于网格的顶点,磁场各分量位于网格的中心.导出了基于新网格的FDTD迭代公式,讨论了新网格对FDTD基本理论的影响.新网格的优点在于:更新某一分量时,用到了其周围更多的信息,使计算精度得到提高.数值实验证明新网格对提高计算精度是有效的.
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| 关 键 词： | 时域有限差分法(FDTD) 差分网格 计算精度 |
| 文章编号： | 1672-948X(2006)01-0090-04 |
| 修稿时间： | 2005年11月7日 |
A New Difference Grid of FDTD |
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| Wang Jianyong,Zhao Changqing,Zhang Min.A New Difference Grid of FDTD[J].Journal of China Three Gorges University(Natural Sciences),2006,28(1):90-93. |
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| Authors: | Wang Jianyong Zhao Changqing Zhang Min |
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| Abstract: | A new difference grid of the finite-difference time-domain method(FDTD) is put forward;and the electric components are in the vertex of the grid;the magnetic components are in the center.The iterative equations of FDTD based on the new grid are derived;and the effect of the new grid on the fundamental theory of FDTD is discussed.The advantage of the new grid is that more information around is used when one component is refreshed;and so the computational accuracy is raised.The numerical experiments indicate that the new grid can raise the computational accuracy effectively. |
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| Keywords: | finite-difference time-domain method(FDTD) difference grid computational accuracy |
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