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Negative refraction of a combined double S-shaped metamaterial
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Image of FIG. 1.
FIG. 1.

Slice of the metamaterial structure composed of combined double S-shaped pattern. The slice is repeated in the direction with a periodicity of .

Image of FIG. 2.
FIG. 2.

Power transmission characteristics for the structure of Fig. 1.

Image of FIG. 3.
FIG. 3.

Electric field through the center of the metamaterial at . The metamaterial slab is located between 0.0102 and along the vertical axis.

Image of FIG. 4.
FIG. 4.

Three-dimensional result of the beam refraction experiment with the three axes representing the detected power in milliwatts, the frequency in gigahertz, and the angle in degrees, respectively.

Image of FIG. 5.
FIG. 5.

(a) Slice of the metamaterial sample without gaps (top inset) and with gaps (bottom inset) in the horizontal metallic strips. (b) Transmission properties of capacitor-eliminated structures for three cases: (1) the sample is well in contact with the waveguide plate (case 1); (2) an aperture is introduced between the sample and the waveguide plate so that the metallic strips in the sample lose electrical continuity (case 2); and (3) the same configuration as (2) is used, except that the sample has gaps included in the structure (case 3).


Generic image for table
Table I.

Comparison of the relative bandwidths for different metamaterial structures.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Negative refraction of a combined double S-shaped metamaterial