L波段高功率多注速调管设计与模拟
Design and simulation of high power L-band multi-beam klystron
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摘要: 开展了峰值功率10 MW、平均功率150kW的L波段多注速调管的研究工作。采用均匀场多透镜聚焦系统对多电子注进行聚焦，获得了具有良好层流性和波动性的旁轴多注电子光学系统；采用二次谐波腔，对6个电子注、6个同轴谐振腔结构的速调管进行了注波互作用计算。结果表明，当电子注电压为115 kV，电流为132 A时，可获得大于10 MW的脉冲输出功率，大于65%的输出效率和大于45 dB的增益。Abstract: An L-band 10 MW peak power, 150 kW average power multi-beam klystron(MBK) is studied．High quality multiple paracial electron optics system axis are achieved in a uniform, multi-lens magnetic field focusing system. The non-linear calculation of beam-wave interaction is carried for the L-band MBK with six electron beams and six coaxial cavities including a second harmonic cavity. The results show that the multi-beam klystron can produce an output peak power of more than 10 MW, an efficiency of more than 65% and a gain of more than 45 dB with a beam voltage of 115 kV and a beam current of 132 A．
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