A TUNABLE BANDPASS FILTER WITH CONSTANT ABSOLUTE BANDWIDTH

被引：16
|
作者：
Liu, B. [1 ]
Wei, F. [1 ]
Wu, Q. Y. [1 ]
Shi, X. W. [1 ]
机构：
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Shaanxi, Peoples R China
来源：
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2011年 / 25卷 / 11-12期
关键词：
MICROSTRIP; RESONATORS; SWITCHES; DESIGN;
D O I：
10.1163/156939311797164819
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel tunable bandpass filter with constant absolute bandwidth is presented in this paper. Introducing a mixed electric and magnetic coupling structure and a new external coupling scheme, nearly constant absolute bandwidth is maintained across the tuning range. Theoretical analysis and design approach are demonstrated. The proposed filter is designed with a frequency coverage of 0.78-1.08 GHz and constant 3-dB bandwidth of 50 MHz over the tuning range. The experimental results show good performance of the filter and validate the design concept.
引用
收藏
页码：1596 / 1604
页数：9
相关论文
共 50 条
  • [41] Tunable microstrip bandpass filter with constant fractional bandwidth based on cascade triplet topology
    Jia, Dinghong
    Feng, Quanyuan
    Huang, Xiaoguo
    Xiang, Qianyin
    INTERNATIONAL JOURNAL OF ELECTRONICS, 2017, 104 (10) : 1646 - 1657
  • [42] A Planar Vertically-Integrated Tunable Filter/Antenna with Constant Absolute Bandwidth
    Lovato, Ricardo
    Gong, Xun
    2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS), 2017, : 2011 - 2014
  • [43] Compact Tunable Balanced Bandpass Filter With Constant Bandwidth Based on Magnetically Coupled Resonators
    Deng, Hong-Wei
    Sun, Liang
    Liu, Fei
    Xue, Yi-Fan
    Xu, Tao
    IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2019, 29 (04) : 264 - 266
  • [44] Non-Reciprocal Bandpass Filter with Tunable Center Frequency and Constant Fractional Bandwidth
    Shirazi, Minahil
    Chatzichristodoulou, David
    Quddious, Abdul
    Shoaib, Nosherwan
    Psychogiou, Dimitra
    Nikolaou, Symeon
    Vryonides, Photos
    2021 IEEE MTT-S INTERNATIONAL MICROWAVE FILTER WORKSHOP (IMFW), 2021, : 252 - 254
  • [45] Design of Tunable Coaxial Bandpass Filters With Constant Absolute Bandwidth Using One Tuning Element
    Yan, Jun-Jie
    Chen, Fu-Chang
    Xiang, Kai-Ran
    Tu, Zhi-Hong
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2024, 71 (04) : 1959 - 1963
  • [46] A Reconfigurable Balanced Dual-Band Bandpass Filter With Constant Absolute Bandwidth and High Selectivity
    Wei, Feng
    Zhang, Chi Yuan
    Zeng, Cao
    Shi, Xiao Wei
    IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2021, 69 (09) : 4029 - 4040
  • [47] A Novel Tunable LC Bandpass Filter with Constant Bandwidth based on Magnetic Dominant Mixed Coupling
    Liu L.
    Xiang Q.-Y.
    Jia D.
    Huang X.
    Feng Q.
    Progress in Electromagnetics Research Letters, 2022, 103 : 73 - 79
  • [48] A Constant Fractional-Bandwidth Control Scheme for Tunable Closed-Ring Bandpass Filter
    Chen, Yi-Ming
    Yang, Chin-Hsiang
    Chang, Sheng-Fuh
    Chang, Chia-Chan
    2014 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC), 2014, : 250 - 252
  • [49] A Tunable Waveguide Filter Designed with a Constant Absolute Bandwidth Using a Single Tuning Element
    Gowrish, B.
    Mansour, Raafat R.
    2018 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM - IMS, 2018, : 1360 - 1362
  • [50] A 2.285-3.195 GHz Electrical Tunable Bandstop Filter with Constant Absolute Bandwidth
    Xiang, Qianyin
    Feng, Quanyuan
    Huang, Xiaoguo
    Jia, Dinghong
    2014 IEEE INTERNATIONAL WIRELESS SYMPOSIUM (IWS), 2014,
12345