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基于砷化镓光电导开关的双极性固态脉冲功率源

朱章杰 杨迎香 胡龙 黄嘉 李昕

朱章杰, 杨迎香, 胡龙, 等. 基于砷化镓光电导开关的双极性固态脉冲功率源[J]. 强激光与粒子束, 2024, 36: 115007. doi: 10.11884/HPLPB202436.240238
引用本文: 朱章杰, 杨迎香, 胡龙, 等. 基于砷化镓光电导开关的双极性固态脉冲功率源[J]. 强激光与粒子束, 2024, 36: 115007. doi: 10.11884/HPLPB202436.240238
Zhu Zhangjie, Yang Yingxiang, Hu Long, et al. Bipolar ultra-wide spectrum pulse generator based on GaAs photoconductive switches[J]. High Power Laser and Particle Beams, 2024, 36: 115007. doi: 10.11884/HPLPB202436.240238
Citation: Zhu Zhangjie, Yang Yingxiang, Hu Long, et al. Bipolar ultra-wide spectrum pulse generator based on GaAs photoconductive switches[J]. High Power Laser and Particle Beams, 2024, 36: 115007. doi: 10.11884/HPLPB202436.240238

基于砷化镓光电导开关的双极性固态脉冲功率源

doi: 10.11884/HPLPB202436.240238
基金项目: 国家自然科学基金项目(52177156)
详细信息
    作者简介:

    朱章杰,3122153061@stu.xjtu.edu.cn

    通讯作者:

    胡 龙,hulong@xjtu.edu.cn

  • 中图分类号: TN78

Bipolar ultra-wide spectrum pulse generator based on GaAs photoconductive switches

  • 摘要: 设计了一种基于砷化镓(GaAs)光电导开关(PCSS)的双极性固态脉冲功率源。通过对两级脉冲形成线(PFL)结构端反射系数的研究,分析了单极性正、负脉冲以及双极性脉冲产生的波过程,并采用PSpice工具开展电路仿真研究。研究了输入端电阻阻抗对脉冲拖尾的影响,提出了脉冲拖尾调制和脉冲宽度调制的方法。基于体结构GaAs PCSS和两级脉冲形成线结构,搭建了电阻隔离的脉冲充电实验平台,采用光路分时触发技术对光电导开关导通时序进行调控。实验结果表明,所研制的双极性固态脉冲功率源在2.5 kV偏压下可产生峰峰值达3.26 kV、脉宽5.6 ns、重复频率1 kHz的双极性纳秒冲激脉冲,验证了将雪崩GaAs PCSS与多级波拓扑结构PFL结合产生双极性纳秒冲激脉冲的可行性。
  • 图  1  结构示意与端反射系数点阵

    Figure  1.  Schematic structure with end-reflection coefficient dot matrix

    图  2  PSpice仿真电路

    Figure  2.  PSpice simulation circuit

    图  3  单极性负脉冲

    Figure  3.  Unipolar negative pulse

    图  4  单极性正脉冲

    Figure  4.  Unipolar positive pulse

    图  5  双极性脉冲

    Figure  5.  Bipolar pulse

    图  6  2级脉冲拖尾调制

    Figure  6.  2-level pulse trailing modulation

    图  7  24级脉冲拖尾调制

    Figure  7.  24-level pulse trailing modulation

    图  8  脉冲宽度调制结构示意

    Figure  8.  Schematic of pulse modulation structure

    图  9  脉冲宽度调制仿真结果

    Figure  9.  Pulse modulation simulation results

    图  10  实验平台实物图

    Figure  10.  The experimental platform

    图  11  实验电路原理图

    Figure  11.  Schematic of experimental circuit

    图  12  器件结构示意图

    Figure  12.  Schematic of device structure

    图  13  单极性负脉冲实验结果

    Figure  13.  Unipolar negative pulse experimental result

    图  14  单极性正脉冲实验结果

    Figure  14.  Unipolar positive pulse experimental result

    图  15  脉冲参数分析

    Figure  15.  Pulse parameter analysis

    图  16  脉冲拖尾调制实验结果

    Figure  16.  Experimental results of pulse trailing modulation

    图  17  脉冲源重频测试

    Figure  17.  Pulse source repetition frequency test records

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  • 被引次数: 0
出版历程
  • 收稿日期:  2024-07-20
  • 修回日期:  2024-10-22
  • 录用日期:  2024-10-22
  • 网络出版日期:  2024-10-26
  • 刊出日期:  2024-11-15

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