强激光与粒子束, 2014, 26 (4): 045012, 网络出版: 2014-04-24   

层叠Blumlein纳秒脉冲形成线设计与实验

Design and experiments of stacked Blumlein nano-second pulse forming lines
作者单位
中国工程物理研究院 流体物理研究所, 脉冲功率科学与技术重点实验室, 四川 绵阳 621900
摘要
研究了一种结构紧凑型的多级层叠Blumlein纳秒脉冲形成线,从理论上分析了放电时回路各分布参数对层叠Blumlein脉冲形成线输出电压的影响,并利用PSpice模拟验证了各分布参数对层叠Blumlein脉冲形成线输出结果的影响,发现开关的导通电阻是制约输出电压幅值的主要因素,开关的分布电感对输出波形的影响大于负载分布电感的影响,基于时域有限差分法原理,利用XFDTD软件模拟了两级层叠Blumlein线的电磁耦合效应。开展了多级层叠Blumlein脉冲形成线实验,结果表明,基于陶瓷固态传输线和GaAs光导开关的层叠Blumlein脉冲形成线能够实现输出电压叠加,可用于产生ns量级脉宽的脉冲高压。
Abstract
A kind of compact stacked Blumlein nano-second pulse forming lines was studied in this paper, and the effect of circuit’s distribution parameter on output voltage of 2-staged stacked Blumlein pulse forming lines (PFLs) was analyzed and simulated by PSpice. The results show that the switch’s on-resistance reduces the amplitude of output voltage, and the influence of the switch’s inductance is greater than the influence of the load’s inductance. The electromagnetic coupling effect of 2-stage Blumlein PFLs with different stacked structures was simulated by using XFDTD based on the principle of finite difference time domain method. The experiments of multi-stage stacked Blumlein PFLs were performed. The results show that, stacked Blumlein PFLs, based on ceramic solid-state transmission lines and GaAs photoconductive switches, achieve the superposition of output voltage, which could generate a nano-second high-voltage pulse.
参考文献

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谌怡, 刘毅, 王卫, 夏连胜, 张篁, 朱隽, 石金水, 章林文. 层叠Blumlein纳秒脉冲形成线设计与实验[J]. 强激光与粒子束, 2014, 26(4): 045012. Shen Yi, Liu Yi, Wang Wei, Xia Liansheng, Zhang Huang, Zhu Jun, Shi Jinshui, Zhang Linwen. Design and experiments of stacked Blumlein nano-second pulse forming lines[J]. High Power Laser and Particle Beams, 2014, 26(4): 045012.

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