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Experimental demonstration of a structured material with extreme effective parameters at microwaves
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10.1063/1.3012373
/content/aip/journal/apl/93/17/10.1063/1.3012373
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/17/10.1063/1.3012373
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) A grounded metamaterial slab is placed in between two horizontal dipole antennas. The structured material is formed by an array of crossed metallic wires parallel to the plane and are tilted by with respect to the interfaces. The wires are embedded in a host material with relative permittivity . (b) Photo of the fabricated prototype formed by 97 FR4 boards printed with metallic strips.

Image of FIG. 2.
FIG. 2.

Lower panel: Amplitude of the -parameters in dB. (a) Measured results. (b) CST MICROWAVE STUDIO full wave simulations. (c) Measured results when an absorber is placed in between the two antennas. (d) Same as (c) but the prototype is rotated by . Top left panel: Phase for cases (a) and (b). Top right panel: photo of the experimental setup.

Image of FIG. 3.
FIG. 3.

CST MICROWAVE STUDIO simulations at 1.25 GHz for the total electric field amplitude at the midheight of the artificial substrate for dipole antennas (a) parallel to the -axis and (b) parallel to the -axis.

Image of FIG. 4.
FIG. 4.

Dispersion characteristic of the guided mode supported by the structured material. (a) Measured result. (b) Full wave simulation with Ref. 7. (c) Theoretical result. (d) Dispersion for a dielectric slab with .

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/content/aip/journal/apl/93/17/10.1063/1.3012373
2008-10-30
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental demonstration of a structured material with extreme effective parameters at microwaves
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/17/10.1063/1.3012373
10.1063/1.3012373
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