Negative-Refractive-Index Transmission Lines With Expanded Unit Cells

被引：6

作者：

Selvanayagam, Michael ^{[1
]}

Eleftheriades, George V. ^{[1
]}

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2008年 / 56卷 / 11期

关键词：

Artificial lines; backward-waves; metamaterials; periodic structures; phase shifters;

D O I：

10.1109/TAP.2008.2005546

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 new "expanded" negative-refractive-index transmission line (NRI-TL) metamaterial unit cell is introduced. This expanded unit cell minimizes the number and reduces the size of the shunt inductors needed to achieve a certain phase-shift per unit length. As in standard NRI transmission lines, both backward and forward bands are supported, with the possibility of closing the stopband between these two bands. The reduction of the shunt inductors is especially advantageous for microstrip realizations. However, this advantage comes at a tradeoff with bandwidth. An example structure is designed and fabricated in microstrip and the measured results show good agreement with simulations.

引用

页码：3592 / 3596

页数：5

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