Novel low-voltage subterahertz-range radial backward wave oscillator

作者：Chen, Zaigao^*; Wang, Jianguo; Wang, Yue

来源：Physics of Plasmas, 2017, 24(1): 013109.

DOI：10.1063/1.4973657

• BAND
• DESIGN

To increase the output power of compact low-voltage subterahertz-range vacuum electron devices (VEDs) to hundreds of watts and overcome the difficulties of the fabrication and assembly, a novel low-voltage subterahertz-range radial backward wave oscillator (BWO), in which the electron beam emits radially inward and interacts with the slow wave structures (SWSs) machined on a planar plate, is presented in this paper. Compared to the VEDs where the axial electron beam or planar sheet electron beam is adopted, the dispersion curve of the proposed radial BWO is independent of the radius and azimuthal coordinate. Hence, the power capacity is increased by using the overmoded SWSs, and the azimuthal asymmetrical modes cannot be excited. Published by AIP Publishing.

• 出版日期2017-1
• 单位西安交通大学; 西北核技术研究所