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折叠半模基片集成波导在滤波器和均衡器中的应用

王显 张德伟 王树兴 吕大龙 张毅

王显, 张德伟, 王树兴, 等. 折叠半模基片集成波导在滤波器和均衡器中的应用[J]. 强激光与粒子束, 2019, 31: 093206. doi: 10.11884/HPLPB201931.190134
引用本文: 王显, 张德伟, 王树兴, 等. 折叠半模基片集成波导在滤波器和均衡器中的应用[J]. 强激光与粒子束, 2019, 31: 093206. doi: 10.11884/HPLPB201931.190134
Wang Xian, Zhang Dewei, Wang Shuxing, et al. Characteristic analysis of folded HMSIW and implements in equalizers and filters[J]. High Power Laser and Particle Beams, 2019, 31: 093206. doi: 10.11884/HPLPB201931.190134
Citation: Wang Xian, Zhang Dewei, Wang Shuxing, et al. Characteristic analysis of folded HMSIW and implements in equalizers and filters[J]. High Power Laser and Particle Beams, 2019, 31: 093206. doi: 10.11884/HPLPB201931.190134

折叠半模基片集成波导在滤波器和均衡器中的应用

doi: 10.11884/HPLPB201931.190134
基金项目: 

核高基重大专项 2013ZX01010003-004

详细信息
    作者简介:

    王显(1994—), 男,硕士,主要从事微波电路方向的研究; 18595823270@163.com

  • 中图分类号: TN715

Characteristic analysis of folded HMSIW and implements in equalizers and filters

  • 摘要: 提出了一种数学建模方法用来分析折叠半模基片集成波导(FHMSIW)结构的场分布。基于多线理论首次计算了FHMSIW结构的衰减常数和相位常数,验证其与传统波导和基片集成波导的等效性。提出了FHMSIW结构具有高通特性和带阻特性,同时该结构的上下层具有近似奇对称的性质。通过在FHMSIW结构的中间金属层蚀刻缝隙或者添加金属过孔,就可以实现器件由带通到带阻的性能转换,给出了FHMSIW结构带阻、带通特性的产生和变换机理。利用其独特的性质,分别设计了等效HMSIW四分之一谐振枝节加载的FHMSIW均衡器和FHMSIW带通滤波器,设计的FHMSIW均衡器无需附加额外的馈电机制。测量结果显示出器件具有良好的性能,与仿真结果具有很好的一致性。相比于其他的平面电路,该设计的结构具有小型化、低损耗以及高Q值等优势。
  • 图  1  FHMSIW结构图

    Figure  1.  Structure of FHMSIW

    图  2  FHMSIW结构的传输性能

    Figure  2.  Transmission performance of the FHMSIW

    图  3  FHMSIW结构数学模型

    Figure  3.  Mathematical model of the FHMSIW

    图  4  FHMSIW结构场分布

    Figure  4.  Field distribution of the FHMSIW

    图  5  n取不同值时的相位常数

    Figure  5.  Phase constant when n takes different values

    图  6  多种方法计算的FHMSIW相位常数β比较

    Figure  6.  FHMSIW phase constants calculated by various methods

    图  7  FHMSIW中三种情况下的衰减常数

    Figure  7.  Attenuation constants in three cases in FHMSIW

    图  8  FHMSIW均衡器结构图

    Figure  8.  Structure of FHMSIW equalizer

    图  9  FHMSIW均衡器测试曲线

    Figure  9.  Measured result of FHMSIW equalizer

    图  10  FHMSIW谐振器结构图

    Figure  10.  Structure of FHMSIW resonator

    图  11  FHMSIW带通滤波器结构

    Figure  11.  Structure of FHMSIW bandpass filter

    图  12  FHMSIW带通滤波器测试曲线

    Figure  12.  Measured result of FHMSIW filter

    图  13  FHMSIW结构图

    Figure  13.  Structure of FHMSIW

    表  1  FHMSIW均衡器尺寸表

    Table  1.   Dimensions of FHMSIW equalizer

    WL/mm h/mm WFHMSIW/mm WHMSIW/mm LHMSIW2/mm
    7.00 0.50 6.63 3.21 13.00
    ΔW/mm D/mm b/mm LHMSIW1/mm LFHMSIW/mm
    0.375 0.40 0.80 12.00 25.00
    下载: 导出CSV

    表  2  FHMSIW滤波器尺寸表

    Table  2.   Dimensions of FHMSIW filter

    WL/mm Lslot1/mm WFHMSIW/mm Lslot2/mm Lslot3/mm
    5.25 2.93 4.85 5.10 2.93
    ΔW/mm D/mm b/mm Wslot/mm LFHMSIW/mm
    0.38 0.40 0.80 0.63 11.60
    下载: 导出CSV

    表  3  滤波器指标对比

    Table  3.   Performance comparison with previous reported SIW filters

    source of filter frequency/GHz bandwidth insertion loss and return loss/dB size(λg×λg)
    Ref.[17] 14.5 4.84% 2.6/16 1.01×1.01
    Ref.[18] 11.4 3.06% no/12 no
    Ref.[19] 8.5 42% 1.1/11 1.25×0.63
    Ref.[20] 5 11.3% 1.85/16.5 0.73×0.71
    this work 7.1 38% 0.8/15 0.90×0.35
    Note: λg is waveguide wavelength at center frequency.
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-04-28
  • 修回日期:  2019-07-10
  • 刊出日期:  2019-09-15

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