| 非匹配传输线产生宽谱脉冲实验研究 |
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| 引用本文： | 丁恩燕,张晋琪,陆巍,刘天文.非匹配传输线产生宽谱脉冲实验研究[J].强激光与粒子束,2014,26(9):095006. |
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| 作者姓名： | 丁恩燕 张晋琪 陆巍 刘天文 |
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| 作者单位： | 1.中国工程物理研究院 应用电子学研究所, 高功率微波技术重点实验室, 四川 绵阳 621 900 |
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| 基金项目： | 中国工程物理研究院重点基金项目(2013A0402021); 国家高技术发展计划项目 |
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| 摘 要： | 介绍了基于短路开关-锐化开关组合的非匹配传输线的工作原理,通过数值模拟分析了开关的导通时间、导通延时以及形成线的长度对输出宽谱振荡脉冲的影响。设计了非匹配传输线的实验装置并在500kV Marx发生器上开展了实验研究。在短路开关间距为4mm、腔体内充入SF6气体的压力为1.15MPa,锐化开关间距为2.5mm、腔体内SF6气体的压力为1.0MPa的条件下,在50Ω传输线上测得的峰值功率为3.3GW,振荡脉冲的中心频率为169MHz,百分比带宽为22.9%。
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| 关 键 词： | 短路开关 锐化开关 宽谱振荡脉冲 非匹配传输线 |
| 收稿时间： | 2013/12/10 |
Experimental analysis of wide-spectrum pulse with no matching transmission line |
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| Institution: | 1.Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China |
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| Abstract: | This paper presents a high power no matching transmission line based on chopping-peaking switch,and studies its operating principles. The effects of the switch break-over time, the switch break-over time-delay and the length of the no matching transmission line on the result of output wide-spectrum pulse are analyzed. A high power no matching transmission line is designed accordingly and high voltage experiments are conducted on the 500 kV Marx generation. The no matching transmission line can output wide-spectrum pulse with a peak power of 3.3 GW, a center frequency of 169 MHz, a band width of 22.9% when the chopping switch space is 4 mm with 1.15 MPa SF6 and the peaking switch space is 2.5 mm with 1.0 MPa SF6. |
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| Keywords: | chopping switch peaking switch wide-spectrum surge pulse no matching transmission line |
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