Design of a W-band TE01 mode gyro-TWT amplifier with a lossy ceramic-loaded circuit

Author

Du, C.H. ; Qi, X.B. ; Liu, Pu Kun ; Chang, T.H. ; Xu, S.X. ; Geng, Z.H. ; Hao, B.L. ; Xiao, Liye ; Li, Z.D. ; Shi, S.H. ; Wang Hu ; Liu, G.F.

Author_Institution

Sch. of Electron. Eng. & Comput. Sci., Peking Univ. (PKU), Beijing, China

fYear

2013

fDate

1-6 Sept. 2013

Firstpage

1

Lastpage

2

Abstract

A pulse prototype of a W-band TE₀₁ mode gyrotron traveling-wave tube (gyro-TWT) amplifier is designed, and it features high gain and broadband capabilities. Theoretical investigation predicts that, when the magnetic injection gun (MIG) is optimized to generate an electron beam of voltage 70 kV, current 3 A, high pitch factor 1.5, and low axial-velocity spread about 5%, the gyro-TWT amplifier is of excellent performance, including being driven to saturation with input power P_in<;0.4 W, highest efficiency of 32.4%, and the bandwidth of 4.2 GHz with output power exceeding 50 kW.

Keywords

gyrotrons; microwave amplifiers; microwave tubes; travelling wave tubes; wideband amplifiers; MIG; W-band TE₀₁ mode gyrotron traveling-wave tube amplifier; bandwidth 4.2 GHz; broadband capabilities; current 3 A; electron beam; lossy ceramic-loaded circuit; magnetic injection gun; symmetrical W-band TE₀₁ mode gyroTWT amplifier; voltage 70 kV; Bandwidth; Broadband amplifiers; Couplers; Electron tubes; Gyrotrons; Power amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on

Conference_Location

Mainz

Type

conf

DOI

10.1109/IRMMW-THz.2013.6665409

Filename

6665409