An oversized X-band transit radiation oscillator

被引:35
作者
Cao, Yibing [1 ]
He, Juntao [1 ]
Zhang, Jiande [1 ]
Zhang, Jun [1 ]
Jin, Zhenxing [1 ]
机构
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
ELECTRON-BEAMS;
D O I
10.1063/1.4764550
中图分类号
O59 [应用物理学];
学科分类号
摘要
An oversized transit radiation oscillator is designed to generate high power microwave at X-band. By using a coaxial structure, the power capacity of the device is improved significantly. In order to realize long-pulse operation, the cathode-anode gap, the collector location, and the surface field strength have been emphatically considered in our design. With a 710 kV, 14.5 kA beam guided by a 0.8 T magnetic field, a 2.7GW microwave at 9.38 GHz has been obtained in the simulation. The power conversion efficiency is 26.2%. The simulation also indicates that the highest axial electric field strength on the surface of electrodynamic structure is only 590 kV/cm, which could be further decreased by increasing the radial dimension of the X-band device. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4764550]
引用
收藏
页数:3
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