Abstract
We report on the tunability, by a magnetic field, of a negative permeability metamaterial consisting of stacked arrays of broadside-coupled split ring resonators infiltrated with liquid crystals (LCs). The resonant frequency shift was numerically assessed by a rigorous anisotropic analysis of the reorientation of LC molecules. Experiments were carried out with a prototype designed and fabricated for X -band operation and infiltrated with a nematic compound with optical birefringence Δn=0.18. Scattering parameters vectorial analysis shows a good agreement between the resonant frequency shifts predicted under anisotropic conditions and those measured under static magnetic control.
Original language | English (US) |
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Article number | 193104 |
Journal | Applied Physics Letters |
Volume | 92 |
Issue number | 19 |
DOIs | |
State | Published - 2008 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)