Coupled-line metamaterial coupler having co-directional phase but contra-directional power flow

被引：64

作者：

Islam, R ^{[1
]}

Elek, F ^{[1
]}

Eleftheriades, GV ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Commun Engn, Hsinchu 30039, Taiwan

来源：

ELECTRONICS LETTERS | 2004年 / 40卷 / 05期

关键词：

Coupled-line couplers - Exponential fields;

D O I：

10.1049/el:20040197

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：

A coupled-line coupler comprising a microstrip line, edge-coupled to a negative-refiractive-index line, exhibits co-directional phase but contra-directional Poynting vectors on the lines, leading to backward coupling. A key feature of this coupler is that it can support complex coupled modes. The resulting exponential field decay enables enhanced coupling with moderate line lengths and spacing. An example 3 dB device has been implemented and tested at 3 GHz.

引用

页码：315 / 317

页数：3

共 6 条

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