Design of a low voltage W-band gyro-TWT amplifier

Author

Zhiliang Li ; Jinjun Feng ; Bentian Liu ; Efeng Wang ; Xu Zeng ; Yang Zhang ; Hao Sun ; Tiechang Yan

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Beijing Vacuum Electron. Res. Inst., Beijing, China

fYear

2014

fDate

22-24 April 2014

Firstpage

405

Lastpage

406

Abstract

The design of a low voltage W-Band gyro-TWT amplifier operating in the circular TE₀₁ mode is presented. The interaction circuit in the design consisted of a two stage distributed-loss structure. Results of simulations with nonlinear analysis and particle-in-cell code show that the amplifier can generate a saturated peak power of 42.7kW with a gain of 54dB at 93.8GHz and a 3dB bandwidth of 3.7GHz when operated at a 35kV, 4A, v_⊥/v₁=1.0 electron beam from a magnetron injection gun. The simulations also show a stable operation of the gyrotron in the operating mode.

Keywords

gyrotrons; magnetrons; millimetre wave tubes; travelling wave amplifiers; travelling wave tubes; bandwidth 3.7 GHz; circular TE₀₁ mode; current 4 A; distributed-loss structure; electron beam; frequency 93.8 GHz; gain 54 dB; gyrotron; low voltage gyro-TWT amplifier; magnetron injection gun; nonlinear analysis; particle-in-cell code; power 42.7 kW; voltage 35 kV; Analytical models; Bandwidth; Gyrotrons; Integrated circuit modeling; Low voltage; Power amplifiers; Power generation; Gyro-TWT; Low voltage; W-band;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, IEEE International

Conference_Location

Monterey, CA

Type

conf

DOI

10.1109/IVEC.2014.6857661

Filename

6857661