Periodic fluctuation of heater currents in space traveling wave tubes

Li Yanwei; Shang Xinwen; Xiao Liu; Zhao Jiandong; Li Ning

doi:10.11884/HPLPB202335.230181

Volume 35 Issue 11

Oct. 2023

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Li Yanwei, Shang Xinwen, Xiao Liu, et al. Periodic fluctuation of heater currents in space traveling wave tubes[J]. High Power Laser and Particle Beams, 2023, 35: 113002. doi: 10.11884/HPLPB202335.230181

Citation:

Li Yanwei, Shang Xinwen, Xiao Liu, et al. Periodic fluctuation of heater currents in space traveling wave tubes[J]. High Power Laser and Particle Beams, 2023, 35: 113002. doi: 10.11884/HPLPB202335.230181

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Periodic fluctuation of heater currents in space traveling wave tubes

doi: 10.11884/HPLPB202335.230181

Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 101407, China

Received Date: 2023-06-15
Accepted Date: 2023-10-15
Rev Recd Date: 2023-10-12

Available Online: 2023-10-19

Publish Date: 2023-11-11

Abstract

Abstract

During the cathode preheating process of a small amount of space traveling wave tubes(TWTs), there is a fault of periodic fluctuations in the heater current. In response to this problem, the range of fluctuation of heater current is estimated by creating the equivalent circuit of heater, and the natural frequency of heater double-helix structure is measured by using the laser vibration, thereby the localization of the problem is completed, and the mechanism of period fluctuation of heater current is analyzed, and the conditions under which the periodic fluctuation occurs are clarified, and the solutions are put forward. Meanwhile, theoretically, the qualitative analysis is conducted on the influence of heater current on the reliability of the space TWTs, and the correctness of the conclusion of reliability influence analysis is verified through experiments.
- space traveling wave tube,
- heater current,
- periodic fluctuation,
- double-helix structure,
- natural frequency

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References(15)

References

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