Tunable dual-broad-band branch-line coupler utilizing composite right/left-handed transmission lines

被引：5
作者：
Zhang Y. [1 ]
Hu L. [1 ]
He S.-L. [1 ,2 ]
机构：
[1] Centre for Optical and Electromagnetic Research, Royal Institute of Technology (Sweden), Zhejiang University
[2] Alfven Laboratory, Division of Electromagnetic Theory, Royal Institute of Technology, S-10044, Stockholm
来源：
Journal of Zhejiang University-SCIENCE A | 2005年 / 6卷 / 6期
关键词：
Branch-line coupler (BLC); Broad band; Composite right/left-handed (CRLH); Dual-band; Left-handed; Tunable;
D O I：
10.1631/jzus.2005.A0483
中图分类号：
学科分类号：
摘要：
A tunable dual-broad-band branch-line coupler (BLC) utilizing composite right/left-handed (CRLH) transmission lines is presented. Two λ/4 segments consisting of CRLH transmission lines are added to each port to broaden the dual bands of the branch-line coupler. Numerical simulation and optimal design of the novel coupler are presented. The dual bands of the novel coupler are tunable and broad. The 1-dB bandwidth of each passband is more than 16% of the central frequency.
引用
收藏
页码：483 / 486
页数：3
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