| 矩形双脊波导特性阻抗的有限元分析 |
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| 引用本文： | 王涛,陈小强. 矩形双脊波导特性阻抗的有限元分析[J]. 电子质量, 2009, 0(9): 4-5,17 |
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| 作者姓名： | 王涛 陈小强 |
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| 作者单位： | 兰州交通大学自动化与电气工程学院,甘肃,兰州,730070 |
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| 摘 要： | 脊波导的特性阻抗是脊波导的重要参数之一。文章采用有限元法研究了双脊波导电压电流比定义的特称阻抗，计算了窄边与宽边比为0.5，脊的尺寸变化时的特性阻抗数据。分析可知，脊间距离越小时，其特性阻抗值越小，脊间距离s／d增大为0.9时，特性阻抗接近同比例的矩形波导。这些数据将为波导在工程中的设计应用提供理论基础和参考数据。
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| 关 键 词： | 脊波导 特性阻抗 有限元法 亥姆霍兹方程 |
Study of Characteristic Impedance of Double Ridge Waveguide Using the Finite Elemnet Method |
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| Wang Tao,Chen Xiao-qiang. Study of Characteristic Impedance of Double Ridge Waveguide Using the Finite Elemnet Method[J]. Electronics Quality, 2009, 0(9): 4-5,17 |
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| Authors: | Wang Tao Chen Xiao-qiang |
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| Affiliation: | Wang Tao,Chen Xiao-qiang (school of automation and Electrical Engineering,Lanzhou jiaotong University,Gansu Lanzhou 730070) |
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| Abstract: | Characteristic Impedance is an essential feature of any waveguide.The finite element method is adopted to research the voltage-current definition of impendance in double ridge waveguide.It caculates the characteristic impedance when the ratio of short side to longside is 0.5 and the ridge's dimensions vary. It is shown that the double ridge waveguide would gain a lower impedance when the distance of ridge decrease.When the distance of ridge(s/d) increase to 0.9, characteristic impedance is close to the rect... |
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| Keywords: | ridge waveguide characteristic impedance FEM(finite element method) Helmholtz equation |
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