基于慢波半模基片集成波导的紧凑型平衡滤波器设计
Design of Compact Balanced Filter Using Slow-Wave Half-Mode Substrate Integrated Waveguide
- 电子学报 2023年51卷第10期 页码：2739-2746
- 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：
[ "朱宏彬 男，1998年生，山东烟台人.2020年获得上海交通大学工学学士学位，2023年获得上海交通大学工学硕士学位.主要研究方向为人工表面等离激元结构在滤波器设计中的应用." ]
[ "李晓春（通讯作者） 女，1977年2月生. 1999年、2002年先后于天津大学获学士、硕士学位，2007年于上海交通大学获博士学位.现为上海交通大学高速电子系统设计与电磁兼容研究重点实验室教授、博士生导师.主要研究方向为高速与微波电路、互连技术、电磁兼容等.E-mail: lixc@sjtu.edu.cn" ]
- 基金信息：国家重点研发计划(2019YFB1802904)
DOI：10.12263/DZXB.20220112
中图分类号： TN713+.5;TN816收稿：2021-01-24，
修回：2022-06-27，
纸质出版：2023-10-25
- 稿件说明：
移动端阅览
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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，
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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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dB DM工作相对带宽可达32%，
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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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and
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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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