Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Frequency-Stabilized Terahertz Gyrotron Backward-Wave Oscillator During Electronic Tuning Process
AU - Pan, S.
AU - Du, C.
AU - Gao, Z.
AU - Bao, L.
AU - Zhu, J.
AU - Paoloni, C.
AU - Liu, P.
PY - 2018/10/29
Y1 - 2018/10/29
N2 - This paper proposes an electronic-tuning frequency stabilization scheme with power tuning for a Watt-level terahertz gyrotron oscillator in gyro-BWO state. The intrinsic positive relationship between electron-beam pitch factor a and accelerating voltage V in electron gun contributes to Doppler shift compensation during electronic tuning. When the pitch factor a varies from 1.1 to 1.9, the prototype three-sectioned gyrotron oscillator can be fixed at 253.98 GHz with 10 MHz level error. The output power is tuned by 40% from maximum. This approach is of importance for heat-effect-oriented applications in biomedicines and material processing.
AB - This paper proposes an electronic-tuning frequency stabilization scheme with power tuning for a Watt-level terahertz gyrotron oscillator in gyro-BWO state. The intrinsic positive relationship between electron-beam pitch factor a and accelerating voltage V in electron gun contributes to Doppler shift compensation during electronic tuning. When the pitch factor a varies from 1.1 to 1.9, the prototype three-sectioned gyrotron oscillator can be fixed at 253.98 GHz with 10 MHz level error. The output power is tuned by 40% from maximum. This approach is of importance for heat-effect-oriented applications in biomedicines and material processing.
KW - backward wave oscillators
KW - Doppler shift
KW - electron guns
KW - gyrotrons
KW - submillimetre wave oscillators
KW - frequency stabilization scheme
KW - three-sectioned gyrotron oscillator
KW - terahertz gyrotron backward-wave oscillator
KW - electronic tuning
KW - Doppler shift compensation
KW - electron gun
KW - electron-beam pitch factor
KW - gyro-BWO state
KW - Watt-level terahertz gyrotron oscillator
KW - power tuning
KW - frequency 253.98 GHz
KW - Gyrotrons
KW - Tuning
KW - Oscillators
KW - Cyclotrons
KW - Power generation
U2 - 10.1109/IRMMW-THz.2018.8510041
DO - 10.1109/IRMMW-THz.2018.8510041
M3 - Conference contribution/Paper
BT - 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
PB - IEEE
ER -