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

fYear

2012

fDate

24-26 April 2012

Firstpage

521

Lastpage

522

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IVEC.2012.6262259

Filename

6262259