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四注行波管周期永磁聚焦系统的优化设计

程玲莉 王林梅 王敬东 王磊 袁涛 谭福明

程玲莉, 王林梅, 王敬东, 等. 四注行波管周期永磁聚焦系统的优化设计[J]. 强激光与粒子束, 2019, 31: 113005. doi: 10.11884/HPLPB201931.190153
引用本文: 程玲莉, 王林梅, 王敬东, 等. 四注行波管周期永磁聚焦系统的优化设计[J]. 强激光与粒子束, 2019, 31: 113005. doi: 10.11884/HPLPB201931.190153
Cheng Lingli, Wang Linmei, Wang Jingdong, et al. Optimal design of periodic permanent magnetic focusing system for four-beam traveling wave tubes[J]. High Power Laser and Particle Beams, 2019, 31: 113005. doi: 10.11884/HPLPB201931.190153
Citation: Cheng Lingli, Wang Linmei, Wang Jingdong, et al. Optimal design of periodic permanent magnetic focusing system for four-beam traveling wave tubes[J]. High Power Laser and Particle Beams, 2019, 31: 113005. doi: 10.11884/HPLPB201931.190153

四注行波管周期永磁聚焦系统的优化设计

doi: 10.11884/HPLPB201931.190153
基金项目: 

国家重大科技专项资助项目 JZX2016-0528/Y191

详细信息
    作者简介:

    程玲莉(1970—), 女,从事磁性材料与器件技术; syjh-cll@qq.com

  • 中图分类号: TN124;TM144

Optimal design of periodic permanent magnetic focusing system for four-beam traveling wave tubes

  • 摘要: 根据电子注参数、布里渊磁场公式及周期聚焦系统轴向磁通密度峰值经验公式,计算出永磁聚焦系统轴向峰值磁通密度,利用Ansoft Maxwell 3D软件建立了四注行波管周期永磁聚焦系统仿真模型,对模型结构尺寸进行了参数化分析,研究了周期永磁聚焦系统结构尺寸对聚焦系统通道内磁通密度的影响,确定了磁聚焦系统结构最佳尺寸配合,优化设计出了四注行波管周期永磁聚焦系统。其电子注通道中心轴线上轴向磁通密度峰值Bz=309 mT,横向磁通密度Bt=2.86 mT,Bt/Bz=0.92%。
  • 图  1  四注行波管磁聚焦系统仿真模型

    Figure  1.  Simulation model of magnetic focusing system for four-beam TWT

    图  2  四注行波管PPM聚焦系统结构示意图

    Figure  2.  Schematic diagram of PPM focusing system for four-beam TWT

    图  3  电子注通道内磁通密度与K的关系

    Figure  3.  Relationship between magnetic flux density and K in electron beam tunnel

    图  4  电子注通道内磁通密度与F的关系

    Figure  4.  Relationship between magnetic flux density and F in electron beam tunnel

    图  5  电子注通道内磁通密度与M的关系

    Figure  5.  Relationship between magnetic flux density and M in electron beam tunnel

    图  6  电子注通道内磁通密度与H的关系

    Figure  6.  Relationship between magnetic flux density and H in electron beam tunnel

    图  7  电子注通道内磁通密度与Q的关系

    Figure  7.  Relationship between magnetic flux density and Q in electron beam tunnel

    图  8  电子注通道内磁通密度与Ry1的关系

    Figure  8.  Relationship between magnetic flux density and Ry1 in electron beam tunnel

    图  9  四注行波管PPM聚焦系统电子注通道中心轴线上磁通密度分布

    Figure  9.  Distribution of magnetic flux density on central axis in electron beam tunnel of PPM focusing system of four-beam TWT

    图  10  优化前后极靴磁通密度分布云图

    Figure  10.  Magnetic flux density distribution of pole piece before and after optimization

    图  11  四注行波管PPM聚焦系统电子注通道内磁力线矢量图

    Figure  11.  Vector diagram of magnetic field lines in electron beam tunnel of PPM focusing system of four-beam TWT

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出版历程
  • 收稿日期:  2019-05-08
  • 修回日期:  2019-08-22
  • 刊出日期:  2019-11-15

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