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	Coaxial vircator with feedback and beam modulation
	Zhang Yong-peng ; Liu Guo-zhi ; Shao Hao ; Lin Yu-zheng ; Wang Hong-jun ; Song Wei
	2010-10-12 ; 2010-10-12
关键词	Theoretical or Mathematical/ feedback vircators/ coaxial vircator beam modulation coaxial resonant cavity beam-wave transform efficiency point frequency mode microwave power efficiency/ B2350 Microwave tubes
中文摘要	Coaxial vircator with feedback and beam modulation is designed and studied by theoretical and PIC simulation methods. In the vircator, there are a coaxial resonant cavity that beams pass through and a coupling gap connecting the coaxial resonant cavity and the drift tube, and beam can be modulated before microwave generated in the coaxial resonant cavity. Then the modulation can be strengthened by microwave from the drift tube to the coaxial resonant cavity through the coupling gap. Simulation results and theoretical analysis show that the coaxial vircator has high beam-wave transform efficiency and point frequency. Meanwhile, it is found that the frequency of the microwave that the vircator generates is locked by the coaxial resonant cavity, which can be tuned by tuning the parameters of the coaxial resonant cavity. When a pulse with peak voltage of 600 kV and peak . power of 26.2 GW is fed to the beam in the vircator, a TM/sub 02/ mode microwave with average power of 3. 6 GW at 5.5 GHz is obtained, and the power efficiency reaches 13.7%.
语种	中文
出版者	Nuclear Society of China ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82694]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang Yong-peng,Liu Guo-zhi,Shao Hao,et al. Coaxial vircator with feedback and beam modulation[J],2010, 2010.
APA	Zhang Yong-peng,Liu Guo-zhi,Shao Hao,Lin Yu-zheng,Wang Hong-jun,&Song Wei.(2010).Coaxial vircator with feedback and beam modulation..
MLA	Zhang Yong-peng,et al."Coaxial vircator with feedback and beam modulation".(2010).

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