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Proceedings Paper

Theory and conceptual design of high-power coaxial vircator
Author(s): Wenkai Xie; Suenlu Xiao; Shenggang Liu
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Paper Abstract

The space-charge limiting current of coaxial drift tube is derived by the Green's function method. 2D feature of coaxial vircator is analyzed within the framework of steady- state relativistic-fluid maxwell equations. The radial current arriving at the anode, and plasma frequency for electron beam can be obtained. The resulting plasma frequency solution agrees with the PIC simulational frequency, MAGIC, a 21/2 dimensional particle-in-cell code are used to simulate the coaxial vircator. The output power, the FFT of output power and the plot of single frequencies spectrum, and the time history of current are presented. GW output power is generated with 0.6 MV voltage, and microwave radiation efficiency is about 14.40%.

Paper Details

Date Published: 1 July 1999
PDF: 8 pages
Proc. SPIE 3702, Intense Microwave Pulses VI, (1 July 1999); doi: 10.1117/12.351205
Show Author Affiliations
Wenkai Xie, Univ. of Electronic Science and Technology (China)
Suenlu Xiao, Univ. of Electronic Science and Technology (China)
Shenggang Liu, Univ. of Electronic Science and Technology (China)


Published in SPIE Proceedings Vol. 3702:
Intense Microwave Pulses VI
Howard E. Brandt, Editor(s)

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