Metasurface bilayer for slow microwave surface waves
De Pineda Gutiérrez, J; Ward, G; Hibbins, A; et al.Sambles, JR
Date: 23 August 2019
Journal
Physical review B
Publisher
American Physical Society
Publisher DOI
Abstract
We present a simple two-layer discontinuous crossed metal-strip array that guides microwaves
having very high phase and group indices. The strips are arranged on a square lattice with a two-layer unit-cell. The novelty of this structure resides in the length of the metal strips, which extend
to several unit cells. This work focuses ...
We present a simple two-layer discontinuous crossed metal-strip array that guides microwaves
having very high phase and group indices. The strips are arranged on a square lattice with a two-layer unit-cell. The novelty of this structure resides in the length of the metal strips, which extend
to several unit cells. This work focuses on the isotropic wave dispersion at the lower frequencies. In
addition, two of the higher frequency bands give rise to very strong negative dispersion, and strong
beaming occurs, which can be tailored easily by modifying the relative orientation of the layers.
Physics and Astronomy
Faculty of Environment, Science and Economy
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