| 一种高精度的稳定的色散边界条件 |
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| 引用本文： | 周健义,杨铨让.一种高精度的稳定的色散边界条件[J].电子与信息学报,1997,19(1):137-140. |
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| 作者姓名： | 周健义 杨铨让 |
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| 作者单位： | 东南大学毫米波国家重点实验室，东南大学毫米波国家重点实验室 南京 210096，南京 210096 |
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| 摘 要： | 本文给出了一种高精度的稳定的色散边界条件(DBC),可应用于传输线的时域有限差分法(FDTD)的分析之中。我们用一个新的二阶差分式代替了边界条件中的微分算子。与P。Y。Zhao等人(1994)提出的色散边界条件相比,本文中的边界条件具有相同的绝对稳定特性,但具有更好的吸收性能。
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| 关 键 词： | 吸收边界条件 色散边界条件 时域有限差分法 |
| 收稿时间： | 1995-5-1 |
| 修稿时间： | 1995-12-11 |
A HIGH ACCURACY STABLE DISPERSIVE BOUNDARY CONDITION |
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| Zhou Jianyi,Yang Quanrang.A HIGH ACCURACY STABLE DISPERSIVE BOUNDARY CONDITION[J].Journal of Electronics & Information Technology,1997,19(1):137-140. |
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| Authors: | Zhou Jianyi Yang Quanrang |
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| Affiliation: | State Key Millimeter Wave Lab., Southeast University, Nanjing 210096 |
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| Abstract: | A high accuracy stable Dispersive Boundary Condition(DBC) is presented, which can be used to model wave propagation in transmission lines by the finite-difference time-domain method. The differential factor in the boundary condition is replaced by a new two-order difference scheme. The new DBC has the same absolute stability as that proposed by P. Y. Zhao, et al. (1994), but it has a much better absorbing performance. |
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| Keywords: | Absorbing boundary condition Dispersive boundary condition Finite-difference time-domain method |
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