K波段螺旋行波管夹持杆损耗量分布测量  

Measurement of Loss Distribution of Clamping Rod in K-Band Helix TWT

作　　者：冯瑞敏 易红霞 陈之亮 李延威 尚新文 赵建东 张欣玲 肖刘 FENG Ruimin;YI Hongxia;CHEN Zhiliang;LI Yanwei;SHANG Xinwen;ZHAO Jiandong;ZHANG Xinling;XIAO Liu(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 101400,China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 101408,China;Shandong Microwave Vacuum Technology Co.,Ltd.,Shandong 250000,China)

机构地区：[1]中国科学院空天信息创新研究院,北京101400 [2]中国科学院大学电子电气与通信工程学院,北京101408 [3]山东微波电真空技术有限公司,山东250000

出　　处：《真空科学与技术学报》2022年第5期352-356,共5页Chinese Journal of Vacuum Science and Technology

摘　　要：利用矩形波导TE10模式的电磁场特点,设计K波段螺旋线行波管夹持杆损耗量分布测量件,通过传输的方法对夹持杆的损耗参量进行微波意义上的测量。测量系统通过对S11和S21两个传输参量的运算,去除无功损耗的影响得出夹持杆衰减涂层损耗量沿轴分布规律。在K波段对加载两段衰减器的夹持杆样品进行了测量,得出的衰减量分布比直接测量电阻的方法更准确的反映了集中衰减器的损耗量分布规律,对于集中衰减器的设计具有指导意义。Based on the electromagnetic field characteristics of TE10 mode of rectangular waveguide,a loss distribution measurement module of clamping rod in K-band helix traveling wave tube is designed.The loss parameters of the clamping rod are measured in microwave by transmission method.The measurement system eliminates the influence of reflected loss by calculating two transmission parameters,S;and S;,and obtains the loss distribution of attenuation coating along the axis.A sample of the clamping rod loaded with two-stage attenuators is measured in K-band.The attenuation distribution obtained more accurately reflects the regularities of loss distribution of the attenuator than that obtained by directly measuring the resistance.It is of guiding significance to the design of the attenuator.

关 键 词：K波段 夹持杆 衰减分布 测量 

分 类 号：TN124[电子电信—物理电子学]