Title :
P2-18: The backward-wave oscillation research in high power broadband helical traveling wave tube
Author :
Hu, Yulu ; Wang, YanMei ; Yang, Zhonghai ; Li, Jianqing ; Li, Bin ; Huang, Tao ; Hu, Quan ; Jin, Xiaolin ; Zhu, Xiaofang ; Ma, Shanshan
Author_Institution :
Vacuum Electron. Nat. Lab., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A nonlinear beam-wave interaction has be built to simulate the BWO in Helical traveling wave tube, which is in the above of 1D beam-wave interaction model by field theory, And taking into account of angular speed which are affected by magnetic fields. The CN with different QC has be compared to equivalent circuit in small signal, that the result is close. Also, the simulated results are accorded with the measurements in a broadband helical TWT. The factors affecting the BWO, such as magnetic field and attenuation, have be studied.
Keywords :
backward wave oscillators; equivalent circuits; magnetic fields; travelling wave tubes; 1D beam-wave interaction model; BWO; angular speed; backward-wave oscillation research; broadband helical TWT; broadband helical traveling wave tube; equivalent circuit; field theory; magnetic fields; nonlinear beam-wave interaction; Attenuation; Circuit simulation; Electron tubes; Frequency; Laboratories; Magnetic field measurement; Pulse amplifiers; Space charge; Stability; Vacuum technology; BWIS; BWO; MTSS; TWT;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503506
