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为了克服强流高增益速调管放大器中的自激振荡和适应低阻抗脉冲功率源发展的需要, 利用高阻抗X波段五腔高增益速调管放大器进行了离轴八注八管高增益速调管功率合成技术研究, 在频率为9.47 GHz、模拟输出功率为284 MW、增益为51.6 dB和效率为35.5%条件下, 该器件整管微波输出稳定. 在三维模型中, 在离轴54 mm条件下该器件的微波输出特性稳定. 基于实验室现有4.5 T (长1.1 m, 室温孔径为150 mm)超导磁体, 进行了八注八管高增益速调管的整管模拟, 每个器件实现284 MW的微波输出. 最后, 为实现GW级功率输出, 利用HFSS软件设计了用于离轴八注八管高增益速调管功率合成的八合一功率合成器, 将该合成器同八注八管高增益速调管结合, 模拟得到功率为1.84 GW、增益为50.7 dB、效率为28.8%的微波输出.In this paper, in order to overcome the self-excited oscillation in the high-gain relativistic klystron amplifier, an X-band high-gain relativistic klystron amplifier (RKA) is designed driven by the relativistic beam with its current at a kA-level. The corresponding diode impedance is 800 Ω. Its output power reaches 284 MW at the frequency of 9.47GHz, and the gain and efficiency are 50.6 dB and of 37.4% respectively when the beam voltage is of 800 kV. And for the obtained GW-level RF power in low-impedance pulsed power sources, the power microwave combination technology of off-axis eight-tube high-gain RKA is used. In the three-dimensional model, the microwave output of this kind of RKA is almost constant when the device is at off-axis 54 mm. Simulation is based on the 4.5 T superconducting magnet which is 4.5 m long in the laboratory, and the eight-tube high-gain RKA is simulated using a magnet with the microwave output of 284 MW. Then an eight to one power combiner is designed using HFSS software, and the combiner with eight-tube high-gain RKAs is simulated by a three-dimensional model. Its output power is 1.84 GW, with a gain of 50.7 dB and efficiency of 28.8% respectively.
[1] Serlin V, Frideman M 1994 IEEE Trans. Plasma Sci. 22 692
[2] Benford J, Swegle J 1992 High Power Microwave (2nd Ed.) (New York: Taylor and Francis Group) pp35-82
[3] Rarber R J, Schamiloglu E (translated by Liu G Z, Zhou Z M) 2005 High Power Microwave Sources and Technologies (Beijing: Tsinghua University Press) pp57-63 (in Chinese) [巴卡R J, 谢米洛格鲁E著 (刘国治, 周传明译) 2005 高功率微波源与技术 (北京: 清华大学出版社) 第57–63页]
[4] Friedman M, Krall J 1988 J. Appl. Phys. 55 3353
[5] Sun P, Ding Y G, Zhao D 2007 High Power Laser Particle Beams 19 807 (in Chinese) [孙鹏,丁耀根,赵鼎 2007 强激光与粒子束 19 807]
[6] Liu S G 1989 Relativistic Electronics (Beijing: Science Press) pp101-102 (in Chinese) [刘盛纲 1989 相对论电子学 (北京:科学出版社) 第101–102页]
[7] Wu Y, Xie H Q, Xu Z 2014 Chin. Phys. C 38 017001
[8] Chen Y D, Wu Y, Xie H Q, Li Z H, Zhou Z G 2013 Acta Phys. Sin. 62 104104 (in Chinese) [陈永东, 吴洋, 谢鸿全, 李正红, 周自刚 2013 62 104104]
[9] Luo J G, Cui J, Zhu M, Guo W 2013 Chin. Phys. B 22 067803
[10] Xu X, Wei Y Y, Shen F, Huang M Z, Tang T, Duan Z Y, Gong Y B 2012 Chin. Phys. B 21 068402
[11] Cheng H, Xie H Q, Liu Y H, Li Z H, Wu Y 2014 Acta Phys. Sin. 63 018402 (in Chinese) [成会, 谢鸿全, 刘迎辉, 李正红, 吴洋 2014 63 018402]
[12] Sun P, Ding Y G, Zhao D 2007 High Power Laser Particle Beams 19 1865 (in Chinese) [孙鹏,丁耀根,赵鼎 2007 强激光与粒子束 19 1865]
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[1] Serlin V, Frideman M 1994 IEEE Trans. Plasma Sci. 22 692
[2] Benford J, Swegle J 1992 High Power Microwave (2nd Ed.) (New York: Taylor and Francis Group) pp35-82
[3] Rarber R J, Schamiloglu E (translated by Liu G Z, Zhou Z M) 2005 High Power Microwave Sources and Technologies (Beijing: Tsinghua University Press) pp57-63 (in Chinese) [巴卡R J, 谢米洛格鲁E著 (刘国治, 周传明译) 2005 高功率微波源与技术 (北京: 清华大学出版社) 第57–63页]
[4] Friedman M, Krall J 1988 J. Appl. Phys. 55 3353
[5] Sun P, Ding Y G, Zhao D 2007 High Power Laser Particle Beams 19 807 (in Chinese) [孙鹏,丁耀根,赵鼎 2007 强激光与粒子束 19 807]
[6] Liu S G 1989 Relativistic Electronics (Beijing: Science Press) pp101-102 (in Chinese) [刘盛纲 1989 相对论电子学 (北京:科学出版社) 第101–102页]
[7] Wu Y, Xie H Q, Xu Z 2014 Chin. Phys. C 38 017001
[8] Chen Y D, Wu Y, Xie H Q, Li Z H, Zhou Z G 2013 Acta Phys. Sin. 62 104104 (in Chinese) [陈永东, 吴洋, 谢鸿全, 李正红, 周自刚 2013 62 104104]
[9] Luo J G, Cui J, Zhu M, Guo W 2013 Chin. Phys. B 22 067803
[10] Xu X, Wei Y Y, Shen F, Huang M Z, Tang T, Duan Z Y, Gong Y B 2012 Chin. Phys. B 21 068402
[11] Cheng H, Xie H Q, Liu Y H, Li Z H, Wu Y 2014 Acta Phys. Sin. 63 018402 (in Chinese) [成会, 谢鸿全, 刘迎辉, 李正红, 吴洋 2014 63 018402]
[12] Sun P, Ding Y G, Zhao D 2007 High Power Laser Particle Beams 19 1865 (in Chinese) [孙鹏,丁耀根,赵鼎 2007 强激光与粒子束 19 1865]
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