Experimental Demonstration and Potential Applications of a Tunable NRI Ferrite-Wire Metamaterial

Author

Couture, Simon ; Gauthier, Jules ; Kodera, Toshiro ; Caloz, Christophe

Author_Institution

Dept. of Electr. Eng., Ecole Polytech. de Montreal, Montréal, QC, Canada

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

1022

Lastpage

1025

Abstract

The full-wave validation and experimental demonstration of a NRI metamaterial composed of an array of dielectrically insulated metal wires embedded in a ferrite substrate are reported. The simulation and experimental setup places a wedge-shaped NRI metamaterial in a parallel-plate waveguide structure and measures the refraction angles at the output of the wedge as a function of frequency and of the applied magnetic field using a circular array of tapered transmission lines, for setup size limitation and convenient matching. Moreover, two applications related to this setup are proposed: a real-time spectrum analyzer and a spatial demultiplexer.

Keywords

ferrites; metamaterials; refractive index; transmission lines; FeO₄; NRI ferrite-wire metamaterial; negative refractive index; parallel-plate waveguide structure; refraction angles; spatial demultiplexer; spectrum analyzer; tapered transmission lines; Ferrites; Metamaterials; Permittivity; Refractive index; Wires; Ferrite; negative refractive index (NRI) metamaterial; spatial demultiplexer; spectrum analyzer; wire medium;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2089597

Filename

5609181