V-band high-power sheet-beam folded-waveguide traveling-wave tube

Liu Yang; Xu Jin; Wei Yanyu; Lai Jianqiang; Xu Xiong; Huang Mingzhi; Tang Tao; Gong Yubin

doi:10.3788/HPLPB20122411.2698

Volume 24 Issue 11

Nov. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(11): 2698-2702

Qiu Weicheng, Wang Rui, Xu Zhongjie, et al. Optical crosstalk of HgCdTe PV linear array detector[J]. High Power Laser and Particle Beams, 2012, 24: 2324-2330. doi: 10.3788/HPLPB20122410.2325

Citation:

Liu Yang, Xu Jin, Wei Yanyu, et al. V-band high-power sheet-beam folded-waveguide traveling-wave tube[J]. High Power Laser and Particle Beams, 2012, 24: 2698-2702. doi: 10.3788/HPLPB20122411.2698

Qiu Weicheng, Wang Rui, Xu Zhongjie, et al. Optical crosstalk of HgCdTe PV linear array detector[J]. High Power Laser and Particle Beams, 2012, 24: 2324-2330. doi: 10.3788/HPLPB20122410.2325

Citation:

Liu Yang, Xu Jin, Wei Yanyu, et al. V-band high-power sheet-beam folded-waveguide traveling-wave tube[J]. High Power Laser and Particle Beams, 2012, 24: 2698-2702. doi: 10.3788/HPLPB20122411.2698

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V-band high-power sheet-beam folded-waveguide traveling-wave tube

doi: 10.3788/HPLPB20122411.2698

1.
National Key Laboratory of Science and Technology on Vacuum Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China

Received Date: 2011-11-02
Rev Recd Date: 2012-02-20
Publish Date: 2012-11-01

Abstract

Abstract

The interaction circuit for the V-band high-power traveling-wave tube (TWT) was designed by employing the folded-waveguide slow-wave structure and a 3∶1 aspect-ratio sheet electron beam as the beam-wave interaction circuit. The effect of the sheet-beam channel on the high frequency properties was analyzed, and the optimized structural parameters were obtained under the consideration of dispersion and impedance. A 3-D circuit model of the sheet-beam folded-waveguide TWT was constructed and the beam-wave interaction of this circuit was simulated using the CST particle studio. From our calculations, the sheet-beam folded-waveguide TWT can produce output power of over 160 W with the gain over 34.7 dB ranging from 58 GHz to 62 GHz, when the cathode voltage and beam current are set to 17 kV and 150 mA respectively.
- sheet electron beam,
- folded-waveguide,
- slow-wave structure,
- traveling-wave tube

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