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为了提高相对论速调管放大器的工作频率、输出功率以及转换效率,结合三重轴相对论速调管和多注速调管的特点,采用三维电磁粒子模拟软件分析与设计了工作在X波段的长脉冲同轴多注相对论速调管放大器,通过优化设计有效地抑制了X波段长脉冲相对论速调管放大器的自激振荡,避免了脉冲缩短现象的产生,使X波段相对论速调管放大器在长脉冲状态下能够稳定工作,在注入微波功率为70 kW、束压为600 kV、束流为5 kA、轴向引导磁感应强度为0.8 T的条件下,输出微波功率达到了1.23 GW,效率为41%,增益为42 dB.
In order to improve the working frequency, output power and conversion efficiency of the relativistic klystron amplifier, combined with the characteristics of the triaxial relativistic klystron and the multi-injection klystron, the three-dimensional electromagnetic particle simulation software was used to analyze and design the long pulse By optimizing the design, the self-excited oscillation of X-band long pulse relativistic klystron amplifier is avoided effectively and the generation of pulse shortening is avoided. The X-band relativistic klystron amplifier is controlled by the long pulse Under the conditions of 70 kW microwave power, 600 kV beam power, 5 kA beam current and axial magnetic induction of 0.8 T, the output microwave power reached 1.23 GW with an efficiency of 41% , The gain is 42 dB.