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S波段高精度快速倒相开关设计

白维达 江涛 熊正锋 蒋自力

白维达, 江涛, 熊正锋, 等. S波段高精度快速倒相开关设计[J]. 强激光与粒子束, 2020, 32: 053002. doi: 10.11884/HPLPB202032.190394
引用本文: 白维达, 江涛, 熊正锋, 等. S波段高精度快速倒相开关设计[J]. 强激光与粒子束, 2020, 32: 053002. doi: 10.11884/HPLPB202032.190394
Bai Weida, Jiang Tao, Xiong Zhengfeng, et al. Design of S-band bi-phase modulator with high speed and accuracy[J]. High Power Laser and Particle Beams, 2020, 32: 053002. doi: 10.11884/HPLPB202032.190394
Citation: Bai Weida, Jiang Tao, Xiong Zhengfeng, et al. Design of S-band bi-phase modulator with high speed and accuracy[J]. High Power Laser and Particle Beams, 2020, 32: 053002. doi: 10.11884/HPLPB202032.190394

S波段高精度快速倒相开关设计

doi: 10.11884/HPLPB202032.190394
详细信息
    作者简介:

    白维达(1992—),男,硕士,主要从事高功率微波技术研究;weida_mail@163.com

  • 中图分类号: TN623

Design of S-band bi-phase modulator with high speed and accuracy

  • 摘要:

    倒相开关是能量倍增器法(SLED)脉冲压缩系统中的关键器件,它的倒相精度和开关速度对脉冲压缩系统的性能有重要影响。设计了一种工作在S波段的精度可调、响应迅速的微带反射式倒相开关,并对其进行了理论分析,电路结构设计和仿真研究。对倒相开关的反射终端进行了改进设计,利用一个变容二极管来代替传统的并联枝节电路,通过调节变容二极管的偏置电压改变反射终端的反射系数,从而实现对倒相相位的精确调节。仿真结果表明,倒相开关响应时间约4 ns,且通过调节变容二极管偏置电压可以在一定范围内调节倒相精度。

  • 图  1  反射式倒相开关电路结构示意图

    Figure  1.  Diagram of reflection type bi-phase shifter

    图  2  新型反射终端结构

    Figure  2.  Diagram of proposed reflection terminal

    图  3  新型倒相开关版图

    Figure  3.  Layout of proposed bi-phase shifter

    图  4  时域仿真结果

    Figure  4.  Simulation results of time domain

    图  5  9 ns时经过倒相和不经过倒相的信号对比

    Figure  5.  Simulation results of signal at 9 ns with and without phase shift

    图  6  S参数仿真结果

    Figure  6.  Simulation results of S-parameter

    图  7  相移量调节仿真结果

    Figure  7.  Simulation results of adjustable accuracy

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出版历程
  • 收稿日期:  2019-09-30
  • 修回日期:  2020-02-05
  • 刊出日期:  2020-02-10

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