Design and simulation of 0.4 THz gyro-traveling wave tube

Hu Peng; ZHu Hui; Jiang Yi; Lei Wenqiang; CHen Hongbin; Meng Fanbao

doi:10.3788/HPLPB20122412.2865

Volume 24 Issue 12

Nov. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(12): 2865-2868

Wang Xiaoyu, Wang Jiang’an, Z ong Siguang, et al. Spectrum characteristics of laser-induced acoustic signals[J]. High Power Laser and Particle Beams, 2013, 25: 1639-1642. doi: 10.3788/HPLPB20132507.1639

Citation:

Hu Peng, ZHu Hui, Jiang Yi, et al. Design and simulation of 0.4 THz gyro-traveling wave tube[J]. High Power Laser and Particle Beams, 2012, 24: 2865-2868. doi: 10.3788/HPLPB20122412.2865

Citation:

Hu Peng, ZHu Hui, Jiang Yi, et al. Design and simulation of 0.4 THz gyro-traveling wave tube[J]. High Power Laser and Particle Beams, 2012, 24: 2865-2868. doi: 10.3788/HPLPB20122412.2865

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Design and simulation of 0.4 THz gyro-traveling wave tube

doi: 10.3788/HPLPB20122412.2865

1.
Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China;
2.
Graduate School of China Academy of Engineering Physics,Mianyang 621900,China;
3.
School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China

Received Date: 2012-02-21
Rev Recd Date: 2012-07-13
Publish Date: 2012-11-05

Abstract

Abstract

With the help of 3D PIC software, the beam-wave interaction for a 0.4 THz confocal gyro-traveling-wave tube was simulated. With the consideration of cold dispersion characteristics and diffraction loss ofthe confocal waveguide, HE06 mode is chosen as the interaction working mode. For the purpose of suppressing competing mode, a sever structure is used. In the simulation process, with the adjusting of beam voltage, beam current, working magnetic field, and velocity ratio, the optimized working parameters are found. At last, the operating parameters are chosen as 34 kV beam voltage, 14.25 T magnetic field, 2 A beam current, 0.75 velocity ratio, and with the input power of 1 W, 2.76 kW output power is achieved. The gain exceeds 34 dB, the 3 dB bandwidth achieves 8 GHz, and the efficiency achieved 4%.
- terahertz,
- gyro-traveling wave tube,
- confocal waveguide,
- dispersion,
- beam-wave interaction

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