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

被引：2
|
作者：
章瑜
胡黎
何赛灵
机构：
[1] Centre for Optical and Electromagnetic Research, Joint Research Centre of Photonics of the Royal Institute of Technology (Sweden) and Zhejiang University, Zhejiang University, Hangzhou 310027, China ,Centre for Optical and Electromagnetic Research, Joint R
[2] Division of Electromagnetic Theory, Alfven Laboratory, Royal Institute of Technology, S-100 44, Stockholm, Sweden
来源：
JournalofZhejiangUniversityScienceA(ScienceinEngineering) | 2005年 / 06期
关键词：
Branch-line coupler (BLC); Broad band; Dual-band; Composite right/left-handed (CRLH); Left-handed; Tunable;
D O I：
暂无
中图分类号：
TN811 [传输线、长线];
学科分类号：
0810 ; 081001 ;
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 pass band is more than 16% of the central frequency.
引用
收藏
页码：483 / 486
页数：4
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