一种有限厚度翼片加载螺旋线色散特性及耦合阻抗研究  

Dispersion Characteristic and Interaction Impedance of Finite Size Vane-Loaded Helix Slow-Wave Structures

作　　者：张勇[1] 莫元龙[1] 李建清[1] 周晓岚[1] 

机构地区：[1]电子科技大学物理电子学院高能电子学研究所,四川成都610054

出　　处：《电子学报》2003年第6期924-926,共3页Acta Electronica Sinica

基　　金：国防预研项目 (No 41 32 30 1 0 31 0 )

摘　　要：翼片加载螺旋线慢波结构广泛应用于大功率、宽频带行波管中 .一般的计算未考虑翼片加载所引起的角向空间谐波 ,本文考虑空间谐波 ,建立了有限厚度翼片加载螺旋线慢波结构的模型 ,推导出实用的色散方程和耦合阻抗表达式 .利用导出的方程对实际行波管的螺旋慢波结构进行计算 ,并与测量结果和简单翼片模型进行了比较 .首次通过分析的方法得到加载翼片有最佳中心夹角 (θ)存在 .The vane-loaded helical slow-wave structures is widely used in high power,broadband traveling-wave tubes (TWTs).Considering azimuthal space harmonics brought by the vanes,the finite size vane model is suggested for vane-loaded helical slow-wave structures in this paper.Two vane-loaded helical slow-wave structures of TWT are calculated by the derived dispersion equations and the expressions of interaction impedance.The calculated results are compared with the results of measurement and the calculated results of simple vane model.We find the most suitable center angle(θ) of the vanes is in existence for the first time.

关 键 词：螺旋线 翼片加载 色散特性 

分 类 号：TN124.4[电子电信—物理电子学]