Two Section Wideband 90° Hybrid Coupler Using Parallel-Coupled Three-Line

被引：46
|
作者：
Yoon, Hong-Jib [1 ]
Min, Byung-Wook [1 ]
机构：
[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2017年 / 27卷 / 06期
关键词：
3-line coupled line; branch line coupler; even and odd analysis; hybrid coupler; parallel-coupled line; wideband coupler; BRANCH-LINE COUPLERS;
D O I：
10.1109/LMWC.2017.2701304
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：
Two section wideband hybrid coupler with short-circuited coupled lines in the middle branch is demonstrated. The coupled lines are designed with a parallel-coupled 3-line, which has tight coupling and symmetric transmission phase over the center frequency. Without defected ground planes and a multilayer process, the proposed two-section coupler has the widest fractional bandwidth (FBW) than other two or even three section hybrid couplers modified from branch-line couplers. The designed wideband coupler has 55% FBW at the center frequency of 1.9 GHz. The bandwidth is limited by 1-dB power imbalance and the worst return loss, isolation, and phase imbalance within the bandwidth are 20.1 dB, 20.8 dB, and 3.2 degrees, respectively.
引用
收藏
页码：548 / 550
页数：3
相关论文
共 50 条
  • [1] 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
  • [2] IMPROVED MODELING OF PARALLEL-COUPLED THREE-LINE FOR WIDEBAND FILTERS
    Chen, Chun-Ping
    Imashiro, Wataru
    Anada, Tetsuo
    Ma, Zhewang
    MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2014, 56 (10) : 2392 - 2395
  • [3] An Iterative Synthesis Scheme for Wideband Filter Based on Parallel-Coupled Three-line
    Chen, C-P
    Oda, J.
    Kamata, K.
    Imashiro, W.
    Anada, T.
    Takeda, S.
    2013 EUROPEAN MICROWAVE CONFERENCE (EUMC), 2013, : 889 - 892
  • [4] Design of Wideband Filters With High Skirt-Selectivity Using Improved Parallel-Coupled Three-line Units
    Oda, J.
    Chen, C-P
    Kamata, K.
    Kato, T.
    Kato, N.
    Anada, T.
    Takeda, S.
    2013 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS (APMC 2013), 2013, : 957 - 959
  • [5] Design of A Wideband Filter With Attenuation Poles Using A Novel Parallel-Coupled Three-line Unit Based on Cross-Coupling
    Chen, Chun-Ping
    Oda, Junya
    Anada, Tetsuo
    IEICE TRANSACTIONS ON ELECTRONICS, 2014, E97C (07) : 689 - 696
  • [6] Single-Layer Planar Wideband Rat-Race Coupler Using a Shorted Parallel-Coupled Multi-Line Section
    Zheng, Yana
    Wang, Weimin
    Yang, Yuhao
    Wu, Yongle
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2020, 67 (12) : 3053 - 3057
  • [7] Wideband Hybrid Using Three-Line Coupled Structure and Microstrip-Slot Transitions
    Henin, B.
    Abbosh, A.
    IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2013, 23 (07) : 335 - 337
  • [8] 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
  • [9] Design of Wideband Bandpass Filters Using Parallel-Coupled Asymmetric Three Line Structures with Adjustment Elements
    Sahin, Elif G.
    Gorur, A. Kursad
    Karpuz, Ceyhun
    Gorur, Adnan
    2019 49TH EUROPEAN MICROWAVE CONFERENCE (EUMC), 2019, : 464 - 467
  • [10] A Miniaturized 3 dB 90° Hybrid Coupler Using Coupled-Line Section With Spurious Rejection
    Kim, Jikwon
    Yook, Jong-Gwan
    IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2014, 24 (11) : 766 - 768
12345