Design of broad-band input coupler of W-band TE<sub>02</sub> mode gyro-TWT

Wang Zheyuan; Wang Efeng

doi:10.11884/HPLPB201931.190367

Volume 31 Issue 12

Dec. 2019

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Wang Zheyuan, Wang Efeng. Design of broad-band input coupler of W-band TE02 mode gyro-TWT[J]. High Power Laser and Particle Beams, 2019, 31: 123002. doi: 10.11884/HPLPB201931.190367

Citation:

Wang Zheyuan, Wang Efeng. Design of broad-band input coupler of W-band TE₀₂ mode gyro-TWT[J]. High Power Laser and Particle Beams, 2019, 31: 123002. doi: 10.11884/HPLPB201931.190367

Wang Zheyuan, Wang Efeng. Design of broad-band input coupler of W-band TE02 mode gyro-TWT[J]. High Power Laser and Particle Beams, 2019, 31: 123002. doi: 10.11884/HPLPB201931.190367

Citation:

Wang Zheyuan, Wang Efeng. Design of broad-band input coupler of W-band TE₀₂ mode gyro-TWT[J]. High Power Laser and Particle Beams, 2019, 31: 123002. doi: 10.11884/HPLPB201931.190367

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Design of broad-band input coupler of W-band TE₀₂ mode gyro-TWT

doi: 10.11884/HPLPB201931.190367

Vacuum Electronics National Laboratory, Beijing Vacuum Electronics Research Institute, Beijing 100015, China

Received Date: 2019-09-19
Rev Recd Date: 2019-11-06
Publish Date: 2019-12-01

Abstract

Abstract

In this paper, the input coupler for W-band gyro-TWT is designed to meet the needs of the signal transmission and mode conversion. The input coupler is potential device to be the essential section determining the bandwidth of the whole gyro-TWT. The theoretical analysis of the input coupler of the W-band TE₀₂ mode gyro-TWT is carried out. It is pointed out that one factor affecting the transmission loss of the main mode is that the rise of the miscellaneous modes reduces the transmission coefficient of the main mode, and simulation is done to suppress the miscellaneous modes by optimizing the sizes of the coupling hole, reducing the loss from 3.9 dB to 0.8 dB. According to the simulation sizes processing and cold testing, the final input coupler with 3 dB bandwidth of 7.9 GHz meets the design requirements.
- W-band,
- gyro-TWT,
- TE₀₂ mode,
- input coupler,
- cold test

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References(11)

References

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