A three-dimensional isotropic transmission-line metamaterial topology for free-space excitation

Ashwin K. Iyer and George V. Eleftheriades
This work proposes a three-dimensional isotropic transmission-line metamaterial topology for free-space excitation whose negative-refractive-index properties are validated by full-wave simulation. The topology is based on a physical realization of the symmetrical condensed node of transmission-line ... [Appl. Phys. Lett. 92, 261106 (2008)] published Tue Jul 1, 2008.
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