螺旋线行波管慢波组件散热性能的研究进展  

Latest Development of Heat Dissipation of Slow-Wave Structure in Helix Traveling Wave Tube

作　　者：刘燕文[1] 韩勇[1] 刘濮鲲[1] 张连正[1] 陆玉新[1] 

机构地区：[1]中国科学院电子学研究所,北京100190

出　　处：《真空科学与技术学报》2011年第4期424-434,共11页Chinese Journal of Vacuum Science and Technology

基　　金：国家863计划(No.2007AA0055);国家自然科学基金资助课题(No.61072025)

摘　　要：螺旋线行波管具有宽频带、高增益和高功率等优点,当今被大量应用于卫星通信系统、电子对抗系统和雷达系统。慢波组件是螺旋线行波管的关键组成部分,它的性能优劣直接决定着整管水平。慢波组件的散热性能不仅是决定行波管平均输出功率的主要因素,也是直接影响行波管工作稳定性与可靠性的重要因素。本文针对螺旋线行波管慢波组件,总结了螺旋线慢波组件散热性能的实验测试方法和理论分析方法,分析了影响散热性能的各种因素和各种改善方法。分析比较了不同材料的螺旋线、管壳和夹持杆,不同结构的夹持杆和管壳,不同组件装配方法对慢波组件散热性能的影响。介绍了将金刚石和纳米材料等新型材料应用于螺旋线慢波组件的研究进展。The latest progress of the heat dissipation capability of the slow-wave structure（SWS） of the helix traveling wave tube（TWT） was tentatively reviewed.The discussions focused on three topics：first,the experimental and theoretical evaluation mythologies of the heat dissipation capability of the SWS of the helix TWT;next,the impacts of various factors,such as the thermal characteristics of the materials used in fabricating its helix SWS,its metallic barrels,its support rods,as well as the advanced materials,on the heat dissipation capability;and finally,the influence of various fabrication and assembly techniques on the heat dissipation capability.In addition,the possible applications of the newly-developed advanced materials,including man-made diamond powders and quite a few types of nano-materials in fabricating the SWS of helix TWT were also discussed in a though-provoking way.

关 键 词：螺旋线行波管 慢波组件 散热性能 装配方法 

分 类 号：TN124[电子电信—物理电子学]