S波段磁绝缘线振荡器的数值模拟
Simulation of S band magnetically insulated transmission line oscillator
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摘要: 设计了一种阶梯阴极型S波段磁绝缘线振荡器，通过对其色散关系的研究，选择了合理的结构参数。通过对开放腔模型的分析，得到了磁绝缘线振荡器的谐振频率和有载品质因数。粒子模拟表明，在外加电压523 kV、束流49.7 kA时，微波输出功率4.35 GW，频率2.10 GHz，功率转换效率16.7%。Abstract: A ladder cathode S band magnetically insulated transmission line oscillator(MILO) that operates at 2.10 GHz is designed. Proper structure parameters are chosen based on the discussion of dispersion characteristics. The resonant frequency and loaded quality factor are obtained through numerical calculation of the open cavity model of MILO. An output power of 4.35 GW is generated in 2.5 D particle simulation when the input voltage is 523 kV and input current is 49.7 kA. The power efficiency is 16.7%.
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