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The space charge limiting current in cylinder drifting tube and coaxial drifting tube and the energy that could be obtained and also the restrict magnetic field are analyzed, and the results show that it is propitious to change the energy of electron beam into microwave power in the coaxial conduit. The advantages of the tri-axial relativistic klystron amplifier and the multi-beam klystron amplifier are analyzed, then an x-band coaxial multi-beam relativistic klystron amplifier is designed by using a three-dimensional particle simulation software, and the transmition and the bunching of electron beam are analyzed. A 1.23 GW averaged microwave power over the oscillator period is generated by simulation with 600 kV electron beam voltage, 5 kA current and 0.8 T leading magnetic field density, the frequency is 9.37 GHz and the efficiency is 41%.
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Keywords:
- relativistic klystron amplifier /
- X-band /
- coaxial multi-beam /
- pulse shortening
[1] Benford J, Swegle J A 2008 High Power Microwave Second Edition (Beijing: National Defense Industry Press) pp293---335 (in Chinese) [Benford J, Swegle J A 2008 高功率微波(第二版)(中译本)(北京: 国防工业出版社)第293---335页]
[2] Robert J B, Edl S 2005 High Power Microwave Sources and Technologies (BeiJing: Tsinghua university Press) pp57---63 (in Chinese) [ Robert J B, Edl S 2005 高功率微波源与技术(中译本)( 北京: 清华大学出版社)第57---63页]
[3] Friedman M, Krall J, Lau Y Y, Serlin V 1988 J. Appl. Phys. 64 3353
[4] Friedman M, Pasour J, Smithe D 1999 The American Institute of Physics Conf. Proc 474 373
[5] Pasour J, Smithe D, Ludeking L 2003 The American Institute of Physics Conf. Proc 691 141
[6] Carlsten B E, Faehl R J 1994 IEEE Transactions on Plasma Science 22 719
[7] Huang H, Meng F B, Fan Z K, Li Z H 2006 Acta Phys. Sin. 55 5344 (in Chinese) [黄华, 孟凡宝, 范植开, 李正红 2006 物理学报 55 5344]
[8] Xie J L, Zhao Y X 1966 Bunching Theory of Klystron (Beijing: Science Press) pp123---131 (in Chinese) [谢家麟, 赵永翔 1966 速调管群聚理论(北京: 科学出版社)第123---131页]
[9] Huang H, Fan Z K, Tan J, Ma Q S, Gan Y Q, Chang A B 2004 Acta Phys. Sin. 53 1129 (in Chinese) [黄华, 范植开, 谭杰, 马乔生, 甘延青, 常安碧 2004 物理学报 53 1129]
[10] Huang H, Luo X, Lei L R, Luo G Y, Zhang B Z, Jin X, Tan J 2010 Acta Phys. Sin. 59 1907 (in Chinese) [黄华, 罗雄, 雷禄容, 罗光耀, 张北镇, 金晓, 谭杰 2010 物理学报 59 1907]
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[1] Benford J, Swegle J A 2008 High Power Microwave Second Edition (Beijing: National Defense Industry Press) pp293---335 (in Chinese) [Benford J, Swegle J A 2008 高功率微波(第二版)(中译本)(北京: 国防工业出版社)第293---335页]
[2] Robert J B, Edl S 2005 High Power Microwave Sources and Technologies (BeiJing: Tsinghua university Press) pp57---63 (in Chinese) [ Robert J B, Edl S 2005 高功率微波源与技术(中译本)( 北京: 清华大学出版社)第57---63页]
[3] Friedman M, Krall J, Lau Y Y, Serlin V 1988 J. Appl. Phys. 64 3353
[4] Friedman M, Pasour J, Smithe D 1999 The American Institute of Physics Conf. Proc 474 373
[5] Pasour J, Smithe D, Ludeking L 2003 The American Institute of Physics Conf. Proc 691 141
[6] Carlsten B E, Faehl R J 1994 IEEE Transactions on Plasma Science 22 719
[7] Huang H, Meng F B, Fan Z K, Li Z H 2006 Acta Phys. Sin. 55 5344 (in Chinese) [黄华, 孟凡宝, 范植开, 李正红 2006 物理学报 55 5344]
[8] Xie J L, Zhao Y X 1966 Bunching Theory of Klystron (Beijing: Science Press) pp123---131 (in Chinese) [谢家麟, 赵永翔 1966 速调管群聚理论(北京: 科学出版社)第123---131页]
[9] Huang H, Fan Z K, Tan J, Ma Q S, Gan Y Q, Chang A B 2004 Acta Phys. Sin. 53 1129 (in Chinese) [黄华, 范植开, 谭杰, 马乔生, 甘延青, 常安碧 2004 物理学报 53 1129]
[10] Huang H, Luo X, Lei L R, Luo G Y, Zhang B Z, Jin X, Tan J 2010 Acta Phys. Sin. 59 1907 (in Chinese) [黄华, 罗雄, 雷禄容, 罗光耀, 张北镇, 金晓, 谭杰 2010 物理学报 59 1907]
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