Suppressing RF breakdown of powerful backward wave oscillator by field redistribution
Suppressing RF breakdown of powerful backward wave oscillator by field redistribution
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DOI：
10.1063/1.3679546
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发表时间：
2012-01
期刊：
影响因子：
1.6
通讯作者：
W. Song;Jun Sun;Zhimin Song;C. H. Chen;H. Shao;Y. C. Zhang
中科院分区：
文献类型：
--
作者：
W. Song;Jun Sun;Zhimin Song;C. H. Chen;H. Shao;Y. C. Zhang
研究了一种抑制大功率返波振荡器谐振反射腔金属表面射频击穿的过模方法。结果表明，过纵模腔的存在使电场重新分布，抑制了电子发射。与普通装置相比，获得了约5倍宽的频带和至少1.7倍大的功率容量。在X波段高功率微波产生实验中得到了验证，输出功率接近4吉瓦。
An over mode method for suppressing the RF breakdown on metal surface of resonant reflector cavity in powerful backward wave oscillator is investigated. It is found that the electric field is redistributed and electron emission is restrained with an over longitudinal mode cavity. Compared with the general device, a frequency band of about 5 times wider and a power capacity of at least 1.7 times greater are obtained. The results were verified in an X-band high power microwave generation experiment with the output power near 4 gigawatt.