Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Shou-Xi Xu"'
Publikováno v:
Journal of Electromagnetic Waves and Applications. 35:2384-2395
The design of a W-band gyrotron traveling wave tube amplifier is presented. The device with a lossy ceramic interaction circuit operates in the fundamental harmonic TE01 circular electric mode. The...
Publikováno v:
Microwave and Optical Technology Letters. 62:3175-3179
Publikováno v:
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC).
Instability problem is one of the most significant limits for high power gyro-TWTs. In this paper, the absolute instabilities and backward wave oscillation (BWO) instabilities of a 220 GHz confocal waveguide gyro-TWT are discussed. The results show t
Publikováno v:
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC).
In this paper, in order to study 650MHz inductive output tube, according to the basic principles of electrodynamics, the influence of the gap and field strength between the cathode and grid, the bias voltage of grid and frequency offset on the modula
Autor:
Qianzhong Xue, Gaofeng Liu, Ding Zhao, Shan Zhang, Zhi-Hui Geng, Wei Gu, Shou-Xi Xu, Guohui Zhao, Xuewei Wang
Publikováno v:
IEEE Transactions on Plasma Science. 46:1975-1983
The design and experiment of a pulsed Ka-band TE01-mode gyrotron traveling-wave tube are presented. This tube was designed to use the fundamental cyclotron resonance interaction with TE01 cylinder waveguide mode. Backward-wave oscillations of various
Publikováno v:
AIP Advances, Vol 11, Iss 9, Pp 095217-095217-8 (2021)
In order to improve the beam–wave interaction efficiency, a special circle-sector-shaped electron beam is designed and simulated in the confocal waveguide gyrotron traveling-wave tube (gyro-TWT). The linear and nonlinear characteristics of a 0.22 T
Publikováno v:
Journal of Electromagnetic Waves and Applications. 31:1376-1385
In this paper, the simulation of transverse sweeping system (TFSS) and thermal analysis of undepressed collector for a 94 GHz, 30 kW CW gyrotron are presented. A smooth power-density distribution profile on the collector is obtained through repeated
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Confocal waveguide gyrotron traveling wave tube (gyro-TWT) is a novel gyrotron amplifier which can operate in higher order modes and generate high power. In this paper, the linear theory derived from kinetic theory is presented to analyze a 0.22-THz
Publikováno v:
2019 International Vacuum Electronics Conference (IVEC).
In this paper, a W-band rotating TE62 mode is obtained by means of a quasi-optical mode generator in order to test quasi-optical system of the gyrotrons. The quasi-optical generator consists of two mirrors and a coaxial cavity with a perforated outer
Autor:
Chao-Hai Du, Xiang-Bo Qi, Liu Xiao, Pu-Kun Liu, Ling-Bao Kong, Zhi-Hui Geng, Shou-Xi Xu, Zheng-Di Li
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 5:236-243
The relativistic electron cyclotron maser (ECM) has been successfully applied to generating high-power THz wave. In order to realize the additional advantages of broadband tuning and high efficiency interaction, this paper is devoted to exploring the