电子学报 ›› 2018, Vol. 46 ›› Issue (2): 387-392.DOI: 10.3969/j.issn.0372-2112.2018.02.018

• 学术论文 • 上一篇    下一篇

基于奇偶模分析法的四模谐振器结构的双通带带通滤波器设计

张德伟, 王树兴, 刘庆, 周东方, 张毅, 吕大龙, 吴瑛   

  1. 解放军信息工程大学信息系统工程学院, 河南郑州 450002
  • 收稿日期:2016-09-08 修回日期:2017-03-02 出版日期:2018-02-25
    • 通讯作者:
    • 王树兴
    • 作者简介:
    • 张德伟,男,1973年出生,吉林九台人,2005年获博士学位,硕导,教授,主要研究方向为电磁场微波技术、微波无源器件和有源器件、微波测量等.
    • 基金资助:
    • 核高基重大项目 (No.2015-ZX01010001-003)

The Design of Dual-Band Bandpass Filter Using Novel Quadruple-Mode Resonator Based on Odd-and Even-Mode Method

ZHANG De-wei, WANG Shu-xing, LIU Qing, ZHOU Dong-fang, ZHANG Yi, LÜ Da-long, WU Ying   

  1. Institute of Information System Engineering, PLA Information Engineering University, Zhengzhou, Henan 450002, China
  • Received:2016-09-08 Revised:2017-03-02 Online:2018-02-25 Published:2018-02-25
    • Corresponding author:
    • WANG Shu-xing
    • Supported by:
    • Kernal Electronic Devices,  High-end General Application Chips,  Fundamental Software Products Major Program (No.2015-ZX01010001-003)

摘要: 提出了一款基于四模谐振器的新型双通带带通滤波器.设计的四模谐振器基于微带线结构,由四个开路枝节和一个短路枝节组成.两次采用奇偶模分析法对该四模谐振器结构进行分析.该四模谐振器的每个模式能够实现独立调节,同时每两个模式形成一个通带.采用源与负载耦合的馈电方式,提高滤波器的带外抑制性.该滤波器具有四个传输零点和四个传输极点.测试结果表明,该双模双通带滤波器工作于2.08GHz和6.07GHz,3dB带宽分别为11.06%和7.74%.设计的滤波器具有紧凑的结构,只有0.28λg×0.11λg大小.

关键词: 带通滤波器, 双通带, 四模谐振器, 奇偶模分析法, 高选择性

Abstract: A new-type dual-band bandpass filter using a novel quadruple-mode resonator is proposed. This quadruple-mode resonator consists of four open-stubs and one short-stub. The odd-and even-mode method is adopted twice to analyze this resonator and good conclusions are given. Each resonant mode of the quadruple-mode resonator can be tuned independently. Each two modes form a passband of the filter. Source-load coupling is introduced to improve out-band rejection. To testify the proposed theory and resonator structure, a high-selectivity dual-band bandpass filter is designed and fabricated. The measured results show that it has four transmission zeros and four transmission poles. This filter is centered at 2.08/6.07 GHz with 3dB bandwidths 11.06%/7.74% respectively and it has a compact size, only 0.28 λg×0.11λg.

Key words: bandpass filter, dual-band, quadruple-mode resonator, odd-and even-mode method, high-selectivity

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