一种新的高功率微波折叠式谐振腔径向速调管振荡器
A high power microwave radial klystron oscillator with foldaway concentric cylinder resonant cavity
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摘要: 提出一种高功率微波折叠式谐振腔径向速调管振荡器，用电子与电磁场相互作用的一维单电子模型分析了这种折叠式谐振腔径向速调管振荡器的特点。其特点为：径向尺寸小，起振电流低。用二维半PIC程序对折叠式谐振腔径向速调管振荡器进行数值模拟研究。结果表明，当二极管电压为380kV，电流为18kA时，输出微波功率峰值为1GW，主要微波频率为1.52GHz，输出微波为多频率成分微波。通过折叠式谐振腔的电子束得到很强的调制。Abstract: Based on the 1D single electron theory of the interaction between the electron and microwave, the generation and the oscillation of microwave in the foldaway concentric cylinders resonant cavity are analyzed. Employing a 2.5-D PIC code, A radial klystron oscillator with foldaway concentric cylinders resonant cavity is simulated numerically. With a 380kV and 18kA electron beam, a peak value power of 1GW,1.52GHz output microwave is generated by simulation. As the electron beam is strongly nonlinearly modulated by the microwave in the cavity, the output microwave has harmonic components of different frequency.
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