平行板传输线特性阻抗仿真计算及解析修正 |
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引用本文: | 杜雷鸣,谢彦召,王绍飞. 平行板传输线特性阻抗仿真计算及解析修正[J]. 强激光与粒子束, 2015, 27(8): 083201. DOI: 10.11884/HPLPB201527.083201 |
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作者姓名: | 杜雷鸣 谢彦召 王绍飞 |
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作者单位: | 1.西安交通大学 电气工程学院, 西安 71 0049; |
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摘 要: | 提出了一种基于时域反射原理的平行板传输线特性阻抗仿真计算方法,利用该方法借助CST软件构建模型对平行板传输线的特性阻抗值进行了仿真计算,同时重点研究了下极板展宽结构对特性阻抗值的影响。以仿真计算结果为基础,对原有特性阻抗公式进行了修正,提出了包含下极板展宽结构在内的不对称结构的平行板传输线阻抗计算公式,该公式可作为计算有界波模拟器等电磁脉冲模拟装置特性阻抗的参考公式。
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关 键 词: | 平行板传输线 有界波模拟器 时域反射 特性阻抗 解析修正 |
收稿时间: | 2014-04-13 |
Simulation computation and analytic modification of characteristic impedance of parallel-plate transmission line |
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Affiliation: | 1.School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;2.Shenzhen Power Supply Bureau Co.Ltd,Shenzhen 518000,China |
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Abstract: | Based on time domain reflection theory, a novel way to calculate the characteristic impedance of a parallel-plate transmission line is proposed. With CST microwave studio, a simulation model is established to calculate the accurate value of the characteristic impedance of the parallel-plate transmission line. Based on the results, the analytic formula for the characteristic impedance of the parallel-plate transmission line is modified. Furthermore, the effect of broadening of the bottom plate of parallel-plate transmission line on its characteristic impedance is researched. Considering the effect of broadening of bottom plate, a new formula for the characteristic impedance of the parallel-plate transmission line is proposed. The final formula could be applied to the calculation of the characteristic impedance of bounded-wave simulators and other electromagnetic pulse simulators with similar structure. |
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