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| 非Yee网格的FDTD法分析复杂媒质PBG结构的带阻特性 | |
| 引用本文： | 包秀龙,章文勋,李乐伟.非Yee网格的FDTD法分析复杂媒质PBG结构的带阻特性[J].电波科学学报,2003,18(4):353-358. |
| 作者姓名： | 包秀龙 章文勋 李乐伟 |
| 作者单位： | 1. 东南大学毫米波国家重点实验室,江苏,南京,210096;上海交通大学电子工程系,上海,200030 2. 东南大学毫米波国家重点实验室,江苏,南京,210096 3. 新加坡国立大学,新加坡 |
| 基金项目： | 国家自然科学基金(No.60071007)，中-新联合研究计划(No.2001-62) |
| 摘 要： | 采用电、磁场各分量均位于网格中心的高阶时域有限差分法计算PBG结构的色散特性。对简单媒质问题的计算结果与采用Yee网格时域有限差分法所得一致，但更适合于分析含复杂媒质的问题。计算了三类磁各向异性PBG结构的色散特性曲线，指出：磁各向异性媒质都可明显增宽第一阻带；对称型磁各向异性还增多色散特性曲线中的阻带数，但旋磁型各向异性则不影响阻带数。 |
| 关 键 词： | PBG结构 非Yee网格 FDTD 带阻 高阶时域有限差分法 复杂媒质 磁各向异性媒质 色散特性 光子带隙 |
| 文章编号： | 1005-0388(2003)04-0353-06 |
Analysis on the dispersion characteristics of complex medium PBG structure by using non-Yee grid FDTD method |
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| BAG Xiu-long ZHANG Wen-xun LI Le-wei.Analysis on the dispersion characteristics of complex medium PBG structure by using non-Yee grid FDTD method[J].Chinese Journal of Radio Science,2003,18(4):353-358. | |
| Authors: | BAG Xiu-long ZHANG Wen-xun LI Le-wei |
| Abstract: | In this paper, the dispersion relations of 2D-PBG structure are calculated, by using non-Yee grid high-order FDTD method. The simulation result is in good agreement with that of the conventional FDTD method. It proves this method can be used to analyze the dispersion characteristics of PBG structure. The dispersion relations profiles of the three magnetic anisotropic medium PBG structures are presented. According to these results, it can conclude that the of magnetic anisotropic medium with the permeability of real non-diagonal elements is characterized by a wider bandgap width than isotropic PBG, while other PBG's with magnetic anisotropic medium have no effect on the bandgap width. |
| Keywords: | non-Yee grid high order FDTD method PBG structure magnetic ani-sotropic medium |
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