| 用FDTD法分析各向异性介质填充矩形波导的截止特性 |
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| 引用本文： | 王建敏,郑勤红,姚斌,林福明,李升辉,胥万松,李琳.用FDTD法分析各向异性介质填充矩形波导的截止特性[J].云南师范大学学报(自然科学版),2011,31(2):60-64. |
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| 作者姓名： | 王建敏 郑勤红 姚斌 林福明 李升辉 胥万松 李琳 |
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| 作者单位： | 云南师范大学物理与电子信息学院,云南,昆明,650092 |
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| 基金项目： | 国家自然科学基金重点项目(50734007) |
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| 摘 要： | 给出用时域有限差分(FDTD)法分析各向异性介质填充波导问题的差分格式,实例计算了磁各向异性介质完全填充矩形波导TE模各模式的截止波数,计算结果与理论值吻合较好;分析了磁各向异性介质和电各向异性介质填充对矩形波导TE模和TM模主模归一化截止波数的影响。
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| 关 键 词： | 时域有限差分法 各向异性介质 矩形波导 截止波数 |
FDTD method analysis of cut-off characteristic of Rectangular Waveguides Filled with anisotropic medium |
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| WANG Jian-rain,ZHENG Qin-hong,YAO Bin,LIN Fu-ming,LI Sheng-hui,XU Wan-song,LI Lin.FDTD method analysis of cut-off characteristic of Rectangular Waveguides Filled with anisotropic medium[J].Journal of Yunnan Normal University (Natural Sciences Edition),2011,31(2):60-64. |
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| Authors: | WANG Jian-rain ZHENG Qin-hong YAO Bin LIN Fu-ming LI Sheng-hui XU Wan-song LI Lin |
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| Institution: | WANG Jian-min,ZHENG Qin-hong,YAO Bin,LIN Fu-ming,LI Sheng-hui,XU Wan-song,LI Lin(school of Physics and Electronic Information,Yunnan Normal University,Kunming 650092,China) |
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| Abstract: | This paper presents the difference expression of waveguide filled with anisotropic medium by using finite-difference time-domain(FDTD) method.In order to demonstrate the validity of the method,the cut-off wavenumber of TE-mode of the rectangular waveguide filled with anisotropic medium is calculated and a comparison is given.The law,the relation of the normalized cut-off wavenumber and the loaded medium width in rectangular partially filled with magnetic and electric anisotropic medium,has be given. |
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| Keywords: | finite-difference time-domain anisotropic medium rectangular waveguide cut-off wavenumber |
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