| 变阻抗相对论返波管的粒子模拟研究 |
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| 引用本文： | 文光俊,谢甫珍,李家胤,于秀云,刘盛纲. 变阻抗相对论返波管的粒子模拟研究[J]. 强激光与粒子束, 1999, 11(6): 737-741 |
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| 作者姓名： | 文光俊 谢甫珍 李家胤 于秀云 刘盛纲 |
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| 作者单位： | 1.电子科技大学高能电子学研究所, 成都 610054;2. 解放军后勤工程学院,重庆 400016 |
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| 基金项目： | 国家863计划激光技术领域资助 |
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| 摘 要： | 设计了一种X波段耦合阻抗单阶跃变型相对论返波管结构，运用2.5维全电磁粒子程序模拟分析了器件中注波互作用过程，仿真了器件效率与电子注参数的依赖关系，得到了器件在500kV，5.5kA电子注驱动下，能辐射出峰值功率800MW，频率为（9.16±0.03）GHz的微波，工作模式为TM01模式，效率为30%。在截止波导与慢波结构之间设置一段长度合适的光滑漂移段，通过改善正向波基波对电子注的初始调制效果，器件最优化效率可进一步提高到38%。
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| 关 键 词： | 高功率微波 相对论返波管 粒子模拟 变阻抗相对论返波管 |
| 文章编号： | 1001-4322(1999)06-0737-05 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 1999-02-03 |
PARTICLE SIMULATION OF A HIGH EFFICIENT RELATIVISTIC BACKWARD WAVE OSCILLATOR WITH VARIABLE COUPLE IMPEDANCE |
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| WEN Guang-jun, XIE Fu-zhen, LI Jia-yin, YU Xiu-yun, LIU Sheng-gang. PARTICLE SIMULATION OF A HIGH EFFICIENT RELATIVISTIC BACKWARD WAVE OSCILLATOR WITH VARIABLE COUPLE IMPEDANCE[J]. High Power Laser and Particle Beams, 1999, 11(6): 737-741 |
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| Authors: | WEN Guang-jun XIE Fu-zhen LI Jia-yin YU Xiu-yun LIU Sheng-gang |
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| Abstract: | A high-efficient relativistic backward wave oscillator with a single-step change in thecouple impedance has been designed and analyzed in the paper. An electromagnetic particle-in-cell code is being used to investigate the nonlinear beam-wave interaction in the device and other design optimization issues. The simulation results show that the device can generate 800MW peak power microwave at (9. 16 0.03)GHz in the TM_01 mode driven by 500kV, 5. 5kA electron beams. The peak power efficiency is about30%. The device optimum efficiency can be more up to 38% when a section of smooth drift tube lying between cut-off waveguide and slow wave structure is in the optimum condition. |
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| Keywords: | high power microwave relativistic backward wave oscillator particle-in-cell RBWO with variable couple impedane |
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