Axially extracted virtual cathode oscillator with an annular cathode for enhancement of the microwave conversion efficiency

被引：0
|
作者：
Choi, EH [1 ]
Sung, KY
Jeon, W
Jung, Y
Yi, WJ
Cho, GS
Seo, YH
Kim, CH
Yim, DW
Ahn, JW
机构：
[1] Kwangwoon Univ, Pulse Driven Power Res Ctr, Dept Electrophys, Charged Particle Beam & Plasma Lab, Seoul 139701, South Korea
[2] Agcy Def Dev, Taejon 305600, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2004年 / 44卷 / 05期
关键词：
high power microwave; annular; vircator;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A numerical simulation study of a virtual cathode oscillator with an annular cathode has been performed by using a 3-dimensional particle-in-cell (PIC) code called MAGIC. Also, experimental studies are performed for comparison with the numerical results. The annular diode consists of a circular anode mesh and an annular cathode. The object of this investigation is to find the optimized width and radius of an annular cathode in our high power microwave pulser, "Chundoong". Both the simulation and the experimental results show that the output microwave power and frequency depend on the annular cathode width and radius and that the dominant mode of output microwaves is TM01 under an optimized width of 4 mm and radius of 20 mm.
引用
收藏
页码：1256 / 1260
页数：5
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