Analysis of bandwidth and loss in negative-refractive-index transmission-line (NRI-TL) media using coupled resonators

被引：27

作者：

Eleftheriades, George V. ^{[1
]}

机构：

[1] Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2007年 / 17卷 / 06期

关键词：

backward waves; coupled resonators; left-handed media; metamaterials; negative refraction index (NRI); transmission lines (TLs);

D O I：

10.1109/LMWC.2007.897785

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：

The bandwidth and loss characteristics of negative-refractive-index transmission-line (NRI-TL) metamaterials are examined in the limit of the model of coupled C-L resonators. It is analytically shown that the tighter the coupling between resonators, the wider the size of the backward passband and the smaller the propagation losses. This establishes that the wider bandwidths and smaller losses that characterize NRI-TL media are due to the tight coupling (i.e., electrical connection) between their constituent C-L loop resonators, rather than the absence of resonators.

引用

页码：412 / 414

页数：3

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