| 方形同轴线色散特性的研究 |
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| 作者姓名： | 沈金亮 谢扩军 王海波 彭科 |
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| 作者单位： | 电子科技大学物理电子学院,成都610054 |
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| 摘 要： | 文章研究了一种横截面为方形结构的同轴线，采用有限差分原理^1]分析方同轴线中TM波的两个最低模式的色散特性及横截面电磁场分布的问题，理论分析了该模式下的色散方程；利用Matlab编程得到方同轴线中TM波的两个最低模式的色散曲线，然后利用CST模拟了该结构的场分布^2]和色散曲线；将CST仿真结果与理论数值模拟结果进行比较，二者的结果基本一致。
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| 关 键 词： | 有限差分 方形同轴线 色散特性 |
Study on the Dispersion Characteristic of Square Coaxial Line |
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| Authors: | Shen Jinliang Xie Kuojun Wang Haibo Peng Ke |
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| Institution: | (School of Physical Electronics, University Electronic Science and Technology Chengdu 610054, China) |
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| Abstract: | This paper focused on a square coaxial line. By using the finite difference principle,the dispersion characteristics of the TM mode is analysed. The dispersion equation of this line is obtained in theory. The dispersion curves are calculated by using Matlab. Beside these, the CST microwave studio is also used to simulate the filed＇s distributing and the dispersion property of the structure. The simulation from CST and the theoretical results agree well with each other. Which support the theory. |
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| Keywords: | Finite difference Square coaxial line Dispersion characteristic |
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