Preliminary experimental study on a Ka-band RBWO operating at TM<sub>02</sub> mode with low guiding magnetic field

Wang Dongyang; Teng Yan; Shi Yanchao; Li Shuang; Wu Ping; Deng Yuqun; Yang Dewen; Chen Changhua

doi:10.11884/HPLPB201830.170436

Volume 30 Issue 7

Jul. 2018

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Article Navigation > High Power Laser and Particle Beams > 2018 > 30(7): 073003

Wang Dongyang, Teng Yan, Shi Yanchao, et al. Preliminary experimental study on a Ka-band RBWO operating at TM02 mode with low guiding magnetic field[J]. High Power Laser and Particle Beams, 2018, 30: 073003. doi: 10.11884/HPLPB201830.170436

Citation:

Wang Dongyang, Teng Yan, Shi Yanchao, et al. Preliminary experimental study on a Ka-band RBWO operating at TM₀₂ mode with low guiding magnetic field[J]. High Power Laser and Particle Beams, 2018, 30: 073003. doi: 10.11884/HPLPB201830.170436

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Preliminary experimental study on a Ka-band RBWO operating at TM₀₂ mode with low guiding magnetic field

doi: 10.11884/HPLPB201830.170436

Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710024, China

Received Date: 2017-11-04
Rev Recd Date: 2017-12-04
Publish Date: 2018-07-15

Abstract

Abstract

The structure and working principle of a Ka-band RBWO operating at TM₀₂ mode with low guiding magnetic field was introduced, and mechanism of the TM₀₂ mode selection was analyzed. The PIC (particle-in-cell) simulation shows the output power and frequency of the RBWO were 493 MW and 29.3 GHz respectively with guiding magnetic field of 1 T. The operating mode and frequency were corresponding to the theoretic design. The experiment study was done based on the parameters in simulation. A 29.3 GHz millimeter wave with an output power of 286 MW and pulse width of 10 ns was obtained at guiding magnetic field, diode voltage and current of 1 T, 580 kV and 3.56 kA respectively. The frequency of microwave in experiment was in accordance with that in simulation. However, the output power in experiment was much lower, and the pulse width was shortened at post end evidently, which was considered as a result of electrons bombarding at the post cascaded resonators.
- relativistic backward wave oscillator,
- TM₀₂ mode,
- Ka-band,
- low guiding magnetic field,
- pulse shortening

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References(10)

References

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