| 负载不匹配对大功率速调管输出特性的影响 |
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| 引用本文： | 丁耀根,沈斌,丁海兵.负载不匹配对大功率速调管输出特性的影响[J].强激光与粒子束,2011,23(5). |
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| 作者姓名： | 丁耀根 沈斌 丁海兵 |
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| 作者单位： | 中国科学院 电子学研究所, 中国科学院 高功率微波源与技术重点实验室, 北京 100190 |
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| 摘 要： | 采用微波等效电路和3维电磁场计算软件研究了负载不匹配对大功率速调管输出腔的谐振频率、间隙阻抗和外观品质因数的影响。并采用1维大信号计算软件研究了负载不匹配对速调管效率的影响。对C波段速调管的研究表明：对于单间隙输出腔，负载不匹配对谐振频率影响较小，对间隙阻抗和等效外观品质因子影响较大，当负载驻波比为1.5时，谐振腔的谐振频率变化约35 MHz，间隙阻抗实部最大值变化为3 660~7 998 Ω，等效外观品质因子变化为36.9~93.5，中心频率处的效率下降4.6%。对于滤波器加载输出电路，负载不匹配对阻抗-频率特性和效率-频率特性有较大影响，当负载驻波比为1.5时，中心频率处的效率下降11.2%。当负载驻波比小于1.2时，负载失配对速调管性能的影响较小。
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| 关 键 词： | 速调管 负载失配 驻波比 间隙阻抗 外观品质因子 |
| 收稿时间： | 1900-01-01; |
Influence of load mismatch on output characteristics of klystron |
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| Ding Yaogen,Shen Bin,Ding Haibing.Influence of load mismatch on output characteristics of klystron[J].High Power Laser and Particle Beams,2011,23(5). |
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| Authors: | Ding Yaogen Shen Bin Ding Haibing |
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| Institution: | (Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) |
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| Abstract: | The influence of load mismatch on resonant frequency,gap impedance and external Q factor of klystron output circuit has been studied by using microwave equivalent circuit and 3D electromagnetic software.And the influence of load mismatch on the efficiency of klystron was calculated by 1D large signal klystron code.The calculation results of C band klystron indicate that for single-gap output cavity,the change of resonant frequency caused by load mismatch is smaller and the changes of gap impedance and equiv... |
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| Keywords: | klystron load mismatch standing wave ratio gap impedance external Q factor |
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