| 基于有限元的一类脊波导传输特性分析 |
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| 引用本文： | 肖中秋,常迎香.基于有限元的一类脊波导传输特性分析[J].长春大学学报,2008,18(10):27-30. |
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| 作者姓名： | 肖中秋 常迎香 |
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| 作者单位： | 兰州交通大学数理与软件工程学院,甘肃兰州730070 |
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| 基金项目： | 甘肃省自然科学科研基金重点资助项目(3ZS051-A25-030,3ZS-042-B25-049); 兰州交通大学科研基金(DXS-07-0028,DXS-07-00289) |
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| 摘 要： | 为了寻找传输特性更优良的脊波导结构，本文提出了一种新的脊波导。并应用有限元法对这种结构的单脊波导与双脊波导的截止特性及单模带宽作了分析，给出了主模及第一高次模的场结构图。结果表明其截止波长与单模带宽都要远比同尺寸的矩形脊波导大。进一步分析了填充介质的这种脊波导的截止特性，结果表明填充不均匀介质比的截止特性比填充均匀介质的脊波导更好。
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| 关 键 词： | 有限元法 脊波导 截止波长 单模带宽 场结构图 |
Analysis of transmission characters of ridge waveguides based on finite element method |
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| XIAO Zhong-qiu,CHANG Ying-xiang.Analysis of transmission characters of ridge waveguides based on finite element method[J].Journal of Changchun University,2008,18(10):27-30. |
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| Authors: | XIAO Zhong-qiu CHANG Ying-xiang |
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| Institution: | XIAO Zhong-qiu,CHANG Ying-xiang(School of Mathematics,Physics , Software Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China) |
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| Abstract: | In this paper,a new waveguide is presented in order to find a new kind of ridge waveguide structure which has better transmission characteristics.The cut-off characteristics and single-mode bandwidth of single ridged waveguides and double ridged waveguides are analyzed by the finite element method.Field patterns of main model and the first higher-order model are presented.The results show that the cut-off wavelength and single-mode bandwidth of the new ridged waveguides are larger than all the same size rec... |
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| Keywords: | finite element method ridge waveguide cut-off wavelength single-mode bandwidth field pattern |
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