Design of a Novel Folded Waveguide for 60-GHz Traveling-Wave Tubes

作     者：廖明亮 魏彦玉 王海龙 徐进 刘漾 郭彍 牛新建 宫玉彬 Gun-Sik Park 

作者机构：National Key Laboratory of High Power Vacuum ElectronicsSchool of Physical ElectronicsUniversity of Electronic Science and Technology of China Southwest China Research Institute of Electronic Equipment(CETC 29) Center for THz-Bio Application SystemsDepartment of Physics and AstronomySeoul National University 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2016年第33卷第4期

页      面：28-31页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 61271029 the National Science Fund for Distinguished Young Scholars of China under Grant No 61125103 the National Research Foundation of Korea under Grant No MSIP:NRF-2009-0083512 

主　　题：TWT in of Design of a Novel Folded Waveguide for 60-GHz Traveling-Wave Tubes GHz for 

摘      要：The 60-GHz traveling-wave tube （TWT） prevails nowadays as the amplifier for the satellite communication and electronic countermeasures. The folded waveguide （FW） is a promising all-metal slow-wave structure （SWS） for the 60-GHz TWT with advantages of robust performance, fine heat dissipation, considerable power and bandwidth. A novel FW periodically loaded with rectangular grooves is analyzed for the purpose of gaining higher power and gain. The rf characteristics are investigated by numerical simulation, and the nonlinear large- signal performance of such a TWT is analyzed by a 3I） particle-in-cell code MAGIC. Compared with normal circuits, relatively higher continuous-wave power （40-56 W） and similar bandwidth （5 GHz） are predicted by simulation. Meanwhile, the designed operation voltage is 10.5 kV, which keeps the low-voltage advantage of the popular helix TWT competitor. The novel FW will favor the design of a broadband and high-power 60-GHz TWT