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螺旋带径向厚度对色散和耦合阻抗的影响
引用本文:樊会明,肖刘,韩博,苏小保.螺旋带径向厚度对色散和耦合阻抗的影响[J].电子与信息学报,2007,29(2):492-495.
作者姓名:樊会明  肖刘  韩博  苏小保
作者单位:1. 中国科学院电子学研究所,北京,100080;中国科学院研究生院,北京,100039
2. 中国科学院电子学研究所,北京,100080
摘    要:该文将有限厚度的实际螺旋带等效为存在无限薄螺旋带的等厚真空层,从场分析和软件模拟两个方面研究了等效慢波结构的色散特性和耦合阻抗.将理论计算、软件模拟和实验测试结果进行了比较,结果表明,用真空层等效有限厚度的实际螺旋带时,将无限薄螺旋带置于等厚真空层的中央,其螺旋慢波结构的色散特性和耦合阻抗的理论计算、软件模拟和实验测试结果三者取得了很好的一致.

关 键 词:行波管  螺旋带  慢波结构  色散特性  耦合阻抗
文章编号:1009-5896(2007)02-0492-04
收稿时间:2006-01-06
修稿时间:2006-06-09

Effect of the Radial Thickness of Helix on Dispersion and Coupling Impedance in TWT’s
Fan Hui-ming,Xiao liu,Han bo,Su Xiao-bao.Effect of the Radial Thickness of Helix on Dispersion and Coupling Impedance in TWT’s[J].Journal of Electronics & Information Technology,2007,29(2):492-495.
Authors:Fan Hui-ming  Xiao liu  Han bo  Su Xiao-bao
Affiliation:Institute of Electronic, Chinese Academy of Sciences, Beijing 100080, China; Graduate University of Chinese Academy of Sciences, Beijing 100039, China
Abstract:In this paper, the finite radial thickness tape helix is replaced by the same thickness vacuum layer laid in an infinite thin tape helix. The effect of position of the infinite thin helix on the dispersion and coupling impedance is studied by field analysis and computer simulation. The computed and simulated results are compared to those measured. As a result, if the infinite thin helix lay in the middle of the vacuum, the three results of dispersion and coupling impedance are good agreements when laying an infinite thin tape helix in the middle of the same thickness vacuum layer.
Keywords:Traveling-Wave Tube(TWT)  Tape helix  Slow Wave Structure(SWS)  Dispersion  Coupling impedance
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