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Voltage tunable short wire-pair type of metamaterial infiltrated by nematic liquid crystal
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View: Figures


Image of FIG. 1.
FIG. 1.

Tunable short wire-pair type of negative permeability metamaterial based on nematic LC. (a) Three-dimensional and (b) side views of elementary cell. (c) Photograph of metamaterial sample (the top layer of short wire-pair array was removed for clarity). The geometrical parameters of unit cell are as follows: , , , , and (unit: mm). The copper bar used for connection is 1.00 mm wide. Teflon fiberglass was chosen as host material.

Image of FIG. 2.
FIG. 2.

Experimental transmission magnitude (a) and phase (c) for short wire pair metamaterial as a function of external dc bias voltage. Simulated transmission magnitude [(b) and (d)] phase of the basic unit cell as a function of the reorientation angle of the LC molecules.

Image of FIG. 3.
FIG. 3.

(a) The retrieved real part of effective permeability of tunable short wire pair as a function of LC director angle. (b) Local electric field distribution of short wire-pair in the plane around magnetic resonance frequency.


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Scitation: Voltage tunable short wire-pair type of metamaterial infiltrated by nematic liquid crystal