基于周期缺陷地结构的毫米波加脊半模波导滤波器
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作者单位:

1.军事科学院 国防科技创新研究院,北京 100071;2.国防科技大学 电子科学学院,湖南 长沙 410073

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中图分类号:

TN713

基金项目:

国家自然科学基金(62101565)


Research on millimeter-wave ridged half-mode waveguide filter based on periodic defected ground structure
Author:
Affiliation:

1.National Innovation Institute of Defense Technology, Academy of Military Sciences, Beijing 100071, China;2.College of Electronic Science, National University of Defense Technology, Changsha 410073, China

Fund Project:

Supported by National Natural Science Foundation of China (62101565)

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    摘要:

    提出了一种基于周期缺陷地结构的可集成毫米波加脊半模波导滤波器。该滤波器利用了波导的高通特性以及周期缺陷接地结构的宽带抑制特性,从而构建了有效的通带滤波器。测试表明,该滤波器的3 dB通带范围为39.4~45.4 GHz,中心频点为42.4 GHz,3 dB相对带宽为14.1%,带内最低插入损耗为2.4 dB,位于44.2 GHz,高频带外抑制在58 GHz达40 dB。该滤波器的横截面相比矩形波导滤波器减小了约64 %,有利于电路小型化、集成化。随着5G通信向毫米波频段发展,这种小型化毫米波滤波器在5G通信中有着广阔的应用前景。

    Abstract:

    A monolithic ridged half-mode waveguide bandpass filter with a periodic defected ground array has been successfully fabricated. Utilizing the high-pass characteristic of the waveguide and the rejection band generated by the periodic defected ground structure, an effective passband was created. The measured results show a 3 dB passband from 39.4 to 45.4 GHz, centered at 42.4 GHz with a 3-dB fractional bandwidth of 14.1%. The lowest insertion loss of 2.4 dB locates at 44.2 GHz. The suppression in upper rejection band reaches 40 dB at 58 GHz. Compared to conventional rectangular waveguide filters, the width of the proposed filter is reduced by 64%, which benefits to the integration and miniaturization. With the development of the next generation wireless communication (5G) towards millimeter-wave band, the miniaturized millimeter-wave filter has promising potential for 5G communication.

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引用本文

周奇辉,刘晨曦.基于周期缺陷地结构的毫米波加脊半模波导滤波器[J].红外与毫米波学报,2022,41(4):690~695]. ZHOU Qi-Hui, LIU Chen-Xi. Research on millimeter-wave ridged half-mode waveguide filter based on periodic defected ground structure[J]. J. Infrared Millim. Waves,2022,41(4):690~695.]

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  • 收稿日期:2021-10-25
  • 最后修改日期:2022-08-15
  • 录用日期:2021-11-23
  • 在线发布日期: 2022-08-10
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