Low loss broadband polarization independent fishnet negative index metamaterial at 40 GHz

被引：12

作者：

Zaoui, Wissem Sfar ^{[1
]}

Chen, Ke ^{[1
]}

Vogel, Wolfgang ^{[1
]}

Berroth, Manfred ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Elect & Opt Commun Engn, D-70569 Stuttgart, Germany

来源：

PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS | 2012年 / 10卷 / 03期

关键词：

Metamaterial; Negative refractive index; Double negative; Fishnet; Free space measurement; Microwave;

D O I：

10.1016/j.photonics.2011.02.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a polarization independent fishnet negative index metamaterial at 40 GHz. The structure is investigated theoretically using finite element. method simulations and experimentally by measuring the amplitude and phase of the S-parameters. The experimental setup for free space measurements of both transmission and reflection is hereby introduced. The internal properties are thereafter retrieved and show the double-negative behavior of the structure. This negative index metamaterial exhibits very high transmission (-0.13 dB), low reflection (-33.1 dB) and a high figure of merit (FOM = vertical bar Re(n)/Im(n)vertical bar = 42), where the real part of the refractive index is nearly -1 (Re(n) = -0.93) at 40 GHz. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：245 / 250

页数：6

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