Negative-refractive-index transmission-line metamaterials and enabling electromagnetic applications
AuthorEleftheriades, G. V.
Antoniades, Marcos A.
SourceIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
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The negative-refractive-index (NRI) metamaterials, for which the permittivity and permeability are simultaneously negative, were discussed. The results for two RF/Microwave devices and structures, based on transmission-line NRI metamaterials, were also presented. The loss tangent of the NRI medium for the super-resolving power lens ,at 1.05 GHz was estimated to be tan(δ)= 0.062 which attests to the low-loss nature of the NRI transmission-line lens. The low-profile metamaterial ring antenna was found to be well suited for broadband wireless applications requiring low-profile antennas.