双槽型耦合腔行波管非线性注波互作用计算方法  

Nonlinear Beam-Wave Interaction Calculation Method for Double Slot Coupled-Cavity TWTs

作　　者：王新河 樊宇 郭炜[1] 朱敏[1] 王刚[1,2] 罗积润 WANG Xin-he;FAN Yu;GUO Wei;ZHU Min;WANG Gang;LUO Ji-run(Institute of Electronics,Chinese Academy of Sciences,Beijing 100140,China;University of Chinese Academy of Sciences,Beijing 100039,China)

机构地区：[1]中国科学院电子学研究所,北京100190 [2]中国科学院大学,北京100039

出　　处：《真空电子技术》2020年第1期57-62,共6页Vacuum Electronics

摘　　要：建立了双槽型耦合腔行波管三维频域非线性注波互作用模型,推导出参与注波互作用电磁场及粒子运动方程组。根据模型与方程组编写非线性互作用计算程序,模拟注波互作用过程,得到输出功率、增益等性能参数。计算结果与X波段双槽型耦合腔行波管实测数据比较,以验证计算方法的准确性,并对互作用过程中的非线性现象进行分析,希望能够辅助行波管的设计。3D frequency domain nonlinear beam-wave interaction in a double slot coupled-cavity TWT is modeled.Equations are derived to describe the electromagnetic field and the motion of particles in the process.A program for calculating nonlinear beam-wave interaction is developed based on the model,which can compute output power,gain and other parameters.The calculation results are compared with the measured data of a X-band double slot coupled-cavity TWT to verify the validity and accuracy of the program.Nonlinear phenomena in beam-wave interaction are analyzed to assist the design of traveling-wave tubes.

关 键 词：行波管 注波互作用 三维非线性频域理论 

分 类 号：TN124[电子电信—物理电子学]