Title :
Design of a Q-band gyro-TWT
Author :
Liu, Bentian ; Li, Zhiliang ; Wang, Efeng ; Zeng, Xu ; Feng, Jinjun ; Yan, Tiechang
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Beijing Vacuum Electron. Res. Inst., Beijing, China
Abstract :
The design of a Q-band gyrotron-travelling-wave tube (gyro-TWT) operating in the circular TE01 mode at fundamental cyclotron harmonic are presented. A dielectric-loaded structure is adopted in the interaction circuit of the gyro-TWT to suppress spurious modes TE11 and TE21. A saturated peak power of 220 kW is simulated with saturated gain of 46 dB, efficiency of 30% in operating voltage 70kV, electron beam current 10A and -3dB bandwidth of 3 GHz (~7%).
Keywords :
dielectric materials; gyrotrons; travelling wave tubes; Q-band gyro-TWT; Q-band gyrotron-travelling-wave tube; circular TE01 mode; current 10 A; dielectric-loaded structure; electron beam current; fundamental cyclotron harmonic; gain 46 dB; interaction circuit; power 220 kW; saturated peak power; spurious modes; voltage 70 kV; Bandwidth; Couplers; Dielectrics; Electromagnetic waveguides; Electron tubes; Gain; Gyrotrons; Dielectric loaded waveguides; Q-Band; gyro-TWT; millimeter wave;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4673-0188-6
Electronic_ISBN :
978-1-4673-0187-9
DOI :
10.1109/IVEC.2012.6262259
