Improved side-coupled three-line wideband bandpass filter

被引：1
|
作者：
Li, Li [1 ]
Lin, Haodong [2 ]
Tian, Shu Lin [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Automat Engn, 2006 Xiyuan Ave, Chengdu 611731, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Elect Engn, 2006 Xiyuan Ave, Chengdu 611731, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2017年 / 59卷 / 08期
关键词：
short-ended microstrip stub; side-coupled; three-line filter; wideband bandpass filter; DESIGN; RESONATORS;
D O I：
10.1002/mop.30676
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：
This letter presents an improved side-coupled three-line filter, which is loaded by two short-ended microstrip stubs. The mechanism of improved filter is that the order of original three-line filter is increased from third order to fifth order. As a result, the fractional reflection bandwidth below -10 dB of improved filter is raised from 75% to 98%, and its selectivity (skirt factor) is enhanced from 64% to 75%. The proposed filter has been fabricated and verified on the substrate of 0.508 mm thickness. It is effective on this thin substrate.
引用
收藏
页码：2075 / 2078
页数：4
相关论文
共 50 条
  • [21] Design of Pseudo-Elliptical Wideband Bandpass Filter Using Stub Loaded Short-Circuited Parallel-Coupled Three-Line Units
    Chen, Chun-Ping
    Takahashi, Junya
    Ma, Zhewang
    Anada, Tetsuo
    Hsu, Jui-Pang
    IEICE TRANSACTIONS ON ELECTRONICS, 2010, E93C (07): : 1022 - 1031
  • [22] Compact input-reflectionless balanced bandpass filter with flexible bandwidth using three-line coupled structure
    Zhu, Yahui
    Cai, Jing
    Qin, Wei
    Yang, Wenwen
    Chen, Jianxin
    FRONTIERS OF INFORMATION TECHNOLOGY & ELECTRONIC ENGINEERING, 2023, 24 (02) : 314 - 326
  • [23] DESIGN OF AN ULTRA-WIDEBAND BANDPASS FILTER BY USING COUPLED THREE LINE MICROSTRIP STRUCTURE
    Weng, M. -H.
    Huang, C. -Y.
    Hung, C. -Y.
    Lan, S. -W.
    JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, 2012, 26 (5-6) : 716 - 728
  • [24] Miniaturised microstrip bandpass filter using octagonal hairpin resonators with side-coupled technique
    Liu, H. W.
    Li, W. M.
    ELECTRONICS LETTERS, 2008, 44 (24) : 1410 - 1411
  • [25] Ultra-Wideband Bandpass Filter Using Coupled Line Stubs
    Gupta, Priyanka
    Bhatia, Deepak
    2014 6TH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND COMMUNICATION NETWORKS, 2014, : 126 - 128
  • [26] A Novel Wideband Filtering Power Divider With Embedding Three-Line Coupled Structures
    Yu, Xi
    Sun, Sheng
    IEEE ACCESS, 2018, 6 : 41280 - 41290
  • [27] Wideband 180° Phase Shifter Using Parallel-Coupled Three-Line
    Yoon, Hong-Jib
    Min, Byung-Wook
    IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2019, 29 (02) : 89 - 91
  • [28] FDTD analysis of side-coupled microstrip filter
    Li, LW
    Kooi, PS
    Leong, MS
    Chew, ST
    JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, 2000, 14 (11) : 1533 - 1548
  • [29] An Improved Ultra-Wideband Bandpass Filter Design Using Split Ring Resonator with Coupled Microstrip Line
    Umeshkumar, Dubey Suhmita
    Kumar, Manish
    INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONICS, MATERIALS AND APPLIED SCIENCE, 2018, 1952
  • [30] Wideband Bandpass Filter with Excellent Selectivity Using Anti-coupled Line
    Liang, Liming
    Li, Shulan
    Liu, Yuanan
    Yu, Cuiping
    PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON SOFT COMPUTING IN INFORMATION COMMUNICATION TECHNOLOGY, 2014, : 64 - 66
12345