Title :
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
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;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857661
