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设计加工了一个紧凑型L波段磁绝缘线振荡器(MILO)并进行了实验研究。该MILO具有一个新型收集极和一个新型模式转换器,射频扼流腔减为一个,同时将阴极杆设计成变阻抗结构,该MILO由一台自建的600kV,8Ω,100ns加速器SPARK01驱动。在二极管电压为515~538kV, 二极管电流为58~61kA的条件下, 该MILO在实验中获得了1.76~1.78GHz, 2.2~2.5GW的TM01模高功率微波辐射, 功转换效率为7.3%~7.9%。在30ns的有效电压脉宽下,实验中测得微波脉冲半高宽为15ns。实验结果与模拟结果符合得较好。 相似文献
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A new configuration of a virtual cathode oscillator (VCO), i.e., a quasi-optical cavity VCO, is proposed for high-power microwave generation. The analysis and simulation are carried out to investigate the characteristics of thisconfiguration. In the numerical simulation, the microwave output power of 2.93 GW is obtained with an electronbeam of 610 keV in electron energy and 26.7kA in the beam current. The beam-to-microwave power efficiency is18%. The frequency is 17.5 GHz, and the output microwave mode is TEM10. 相似文献
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