Experimental demonstration of deflection angle tuning in unidirectional fishnet metamaterials at millimeter-waves
Research output: Contribution to journal › Article › peer-review
Authors
Colleges, School and Institutes
External organisations
- Universidad Pública de Navarra
- Adam Mickiewicz University
Abstract
Asymmetric transmission enables high forward-to-backward transmission contrast in the Lorentz reciprocal framework, so that it is envisioned to be a backbone of future practical devices with strong directional selectivity. In this letter, we experimentally demonstrate efficient tuning and sign-switching capabilities of the deflection angle by varying the incidence angle and/or frequency in the unidirectional regime of a compact and simple structure comprising a stack of a fishnet metamaterial and a dielectric grating. The entire device operates at frequencies ranging from 45 to 75 GHz and has a total thickness of 0.77λ0 at 60GHz.
Details
Original language | English |
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Article number | 061109 |
Journal | Applied Physics Letters |
Volume | 106 |
Issue number | 6 |
Publication status | Published - 9 Feb 2015 |