Numerical Design and Optimization of a Curved Collector for a Q-Band Gyro-Traveling Wave Tube

Author

Wei Jiang ; Yong Luo ; Ran Yan

Author_Institution

Sch. of Phys. Electron., Univ. of Sci. & Technol. of China, Chengdu, China

Volume

61

Issue

1

fYear

2014

fDate

Jan. 2014

Firstpage

147

Lastpage

150

Abstract

Procedures to design a curved collector for a Q-band gyrotron traveling wave tube (gyro-TWT) are presented in this paper. The collector of the gyro-TWT is identified as a crucial part due to its high loading with the dissipated power of the spent electron beam. The power capacity of the conventional cylindrical collector is seriously limited due to its smaller dissipation area. To overcome this drawback, we proposed the curved collector, which can enhance the power handling capability so that it will be more suitable for high-power gyro-devices. An optimized curved collector for our Q-band gyro-TWT was designed using numerical calculations and Computer Simulation Technology (CST) Particle Studio. Results show the average dissipated power density of 0.162 kW/cm² is 64% of that in the cylindrical collector.

Keywords

electron beams; gyrotrons; millimetre wave tubes; numerical analysis; optimisation; travelling wave tubes; CST; Q-band gyro-traveling wave tube; computer simulation technology particle studio; curved collector optimization; cylindrical collector; gyro-TWT; high-power gyro-devices; numerical design; power capacity; power handling capability; spent electron beam; Density measurement; Electron beams; Electron tubes; Gyrotrons; MATLAB; Power system measurements; Trajectory; Collector; curved structure; dissipated power density; gyrotron traveling wave tube (gyro-TWT);

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2013.2290211

Filename

6679274