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在虚阴极振荡器的实验中，同时得到了几百兆瓦５．１７ＧＨｚ和几兆瓦７．７４ＧＨｚ的微波输出。根据虚阴极振荡器的单电荷层模型可知，主频５．１７ＧＨｚ的微波由虚阴极自身振荡产生；７．７４ＧＨｚ的微波由虚阴极自身振荡与虚阴极振荡或电子往返振荡产生的调制束流相互作用产生。
In the experiment of the virtual cathode oscillator, the microwave output of several hundred MW 5.17 GHz and several MW 7.74 GHz was obtained at the same time. According to the single-charge layer model of virtual cathode oscillator, the 5.17GHz microwave frequency is oscillated by the virtual cathode itself; the 7.74GHz microwave is generated by the self-oscillation of the virtual cathode and the modulation beam generated by the virtual cathode oscillation or the electron reciprocation oscillation Produce.