双路脉冲输出结构理论设计与仿真  

Design and simulation of dual short pulse transmission structure

作　　者：高明珠 苏建仓[1] 邱旭东[1,2] 曾搏 李锐[1] 赵亮[1] Gao Mingzhu;Su Jiancang;Qiu Xudong;Zeng Bo;Li Rui;Zhao Liang(Key Laboratory of Advanced Science and Technology on High Power Microwave,Northwest Institute of Nuclear Technology,Xi’an 710024,China;Key Laboratory for Physical Electronics and Devices of Ministry of Education,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西北核技术研究所先进高功率微波技术重点实验室,西安710024 [2]西安交通大学电子物理与器件教育部重点实验室,西安710049

出　　处：《强激光与粒子束》2023年第5期90-95,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(51377135)。

摘　　要：基于单台脉冲功率驱动源同时驱动两个微波器件产生双频高功率微波的构想,设计了一种双路短脉冲输出结构,其接于主开关后,能够将主开关产生的高压纳秒脉冲传输至高功率微波产生器。两路脉冲由同一脉冲源产生,具有很好的一致性。对双路输出结构脉冲传输过程进行了建模仿真,研究了传输线阻抗、输入脉冲前沿等电学参数对输出波形质量的影响规律,并完成了绝缘风险分析及结构优化。经评估,在前沿4~8 ns的准方波输入脉冲下,双路脉冲输出线的输出波形质量与单路传输线相当,其过冲振荡均小于20%、平顶振荡均小于1%,且能满足绝缘要求。The scheme of a dual short pulse output structure is proposed,according to the concept that twomicrowave device driven by the same pulsed accelerator can produced stable dual-frequency high power microwave(HPM)simultaneously.Structure model of a dual short pulse output structure is designed,which is connected to themain switch and can transmit the high voltage nanosecond pulse generated by the switch to the HPM generator.Thetwo-channel pulse is produced by the same pulse source and has good consistency.In this paper,the pulsetransmission process of the dual short pulse transmission structure is modeled and simulated,and the influence ofelectrical parameters such as transmission line impedance and input pulse front on output waveform quality is studied.The risk analysis about insulation and structural optimization are completed.It is estimated that the output pulsequality of the simultaneous output line is equal to that of the single transmission line under 4−8 ns quasi-square waveinput pulse,and the overshoot oscillation is less than 20%,the flat top oscillation is less than 1%,and it can meet theinsulation requirement.

关 键 词：双路输出线 脉冲质量 数值模拟 高功率微波 短脉冲传输线 

分 类 号：TM85[电气工程—高电压与绝缘技术]