【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%。更多还原

【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 3.3GW,a center frequency of 169 MHz,a band width of 22.9% when the chopping switch space is 4mm with 1.15 MPa SF6and the peaking switch space is 2.5mm with 1.0MPa SF6.更多还原