Design of Compact Balanced Filter Using Slow-Wave Half-Mode Substrate Integrated Waveguide

ZHU Hong-bin; JI Lei; LI Xiao-chun; MAO Jun-fa

doi:10.12263/DZXB.20220112

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Design of Compact Balanced Filter Using Slow-Wave Half-Mode Substrate Integrated Waveguide

PAPERS | 更新时间：2025-12-08

- Design of Compact Balanced Filter Using Slow-Wave Half-Mode Substrate Integrated Waveguide
- ACTA ELECTRONICA SINICA Vol. 51, Issue 10, Pages: 2739-2746(2023)
- 作者机构：
  
  上海交通大学高速电子系统设计与电磁兼容研究教育部重点实验室，上海 200240
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program(2019YFB1802904)
- DOI：10.12263/DZXB.20220112
  CLC： TN713+.5;TN816
- Received：24 January 2021，
  
  Revised：2022-06-27，
  
  Published：25 October 2023
- 稿件说明：
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朱宏彬,纪磊,李晓春等.基于慢波半模基片集成波导的紧凑型平衡滤波器设计[J].电子学报,2023,51(10):2739-2746.

ZHU Hong-bin,JI Lei,LI Xiao-chun,et al.Design of Compact Balanced Filter Using Slow-Wave Half-Mode Substrate Integrated Waveguide[J].ACTA ELECTRONICA SINICA,2023,51(10):2739-2746.
朱宏彬,纪磊,李晓春等.基于慢波半模基片集成波导的紧凑型平衡滤波器设计[J].电子学报,2023,51(10):2739-2746. DOI： 10.12263/DZXB.20220112.

ZHU Hong-bin,JI Lei,LI Xiao-chun,et al.Design of Compact Balanced Filter Using Slow-Wave Half-Mode Substrate Integrated Waveguide[J].ACTA ELECTRONICA SINICA,2023,51(10):2739-2746. DOI： 10.12263/DZXB.20220112.

摘要

本文基于慢波半模基片集成波导（Slow-Wave Half-Mode Substrate Integrated Waveguide，SW-HMSIW）结构，设计了一款紧凑型平衡滤波器.该滤波器由金属盲孔阵列加载的SW-HMSIW多模谐振腔、两对间距

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的差分馈电线（

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为滤波器中心频率处的波长）组成.该平衡滤波器由于利用了HMSIW多模谐振腔的不同模式，

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和

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两个模式工作在共模（Common Mode，CM）状态，而

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，

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这3个模式工作在差模（Differential Mode，DM）状态，；因此该滤波器相较于已发表文献中的SIW平衡滤波器，具有更宽的工作带宽.进一步，慢波结构的引入实现了对HMSIW多模谐振腔不同模式谐振频率的调控，明显降低了谐振腔的纵向及横向尺寸，实现了滤波器的紧凑化设计.本文提出的滤波器，其总尺寸为

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，

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dB DM工作相对带宽可达32%，

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4.99533367

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dB CM抑制相对带宽可达23%.与同类HMSIW平衡滤波器相比，本文提出的SW-HMSIW平衡滤波器的电路面积减小了约42%.

Abstract

A compact balanced bandpass filter using just one half-mode substrate integrated waveguide (HMSIW) multimode resonator loaded with slow-wave structure is proposed. The filter is composed of a single-layer HMSIW multimode resonator

two pairs of differential feed lines and an array of metal blind holes. The

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modes of the HMSIW multimode resonator operate in differential mode (DM) and

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and

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modes operate in common mode (CM)

resulting in the features of wide bandwidth. The introduction of slow-wave structure controls the resonant frequency of different modes

and realizes the filter miniaturization. A prototype is designed with a total size of

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the

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dB DM fractional bandwidth of 32% at the center frequency of 6.5 GHz

and the

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dB CM fractional suppression bandwidth of 23%. Compared with the previous HMSIW balanced filter

the circuit area of the proposed filter is reduced by 42%.

关键词

Keywords

references

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BOZZI M , WINKLER S A , WU K . Broadband and compact ridge substrate-integrated waveguides [J]. IET Microwaves , Antennas & Propagation, 2010 , 4 ( 11 ): 1965 .

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WANG X H , XUE Q , CHOI W W . A novel ultra-wideband differential filter based on double-sided parallel-strip line [J]. IEEE Microwave and Wireless Components Letters , 2010 , 20 ( 8 ): 471 - 473 .

CHU H , LI P , CHEN J X . Balanced substrate integrated waveguide bandpass filter with high selectivity and common-mode suppression [J]. IET Microwaves , Antennas & Propagation, 2015 , 9 ( 2 ): 133 - 141 .

XU X , WANG J P , ZHU L . A new approach to design differential-mode bandpass filters on SIW structure [J]. IEEE Microwave and Wireless Components Letters , 2013 , 23 ( 12 ): 635 - 637 .

HO M H , LI C S . Novel balanced bandpass filters using substrate integrated half-mode waveguide [J]. IEEE Microwave and Wireless Components Letters , 2013 , 23 ( 2 ): 78 - 80 .

CHU P , HONG W , ZHENG K L , et al . Balanced hybrid SIW-CPW bandpass filter [J]. Electronics Letters , 2017 , 53 ( 25 ): 1653 - 1655 .

SHEN Z D , XU K , SHI J . Compact single-layer bandwidth-enhanced balanced bandpass filter using half-mode substrate-integrated waveguide [J]. Electronics Letters , 2019 , 55 ( 12 ): 697 - 699 .

NIEMBRO-MARTÍN A , NASSERDDINE V , PISTONO E , et al . Slow-wave substrate integrated waveguide [J]. IEEE Transactions on Microwave Theory and Techniques , 2014 , 62 ( 8 ): 1625 - 1633 .

DECKMYN T , AGNEESSENS S , RENIERS A C F , et al . A novel 60 GHz wideband coupled half-mode/quarter-mode substrate integrated waveguide antenna [J]. IEEE Transactions on Antennas and Propagation , 2017 , 65 ( 12 ): 6915 - 6926 .

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