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Mimicking glide symmetry dispersion with coupled slot metasurfaces
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2017 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 111, no 12, article id 121603Article in journal (Refereed) Published
Abstract [en]

In this letter, we demonstrate that the dispersion properties associated with glide symmetry can be achieved in systems that only possess reflection symmetry by balancing the influence of two sublattices. We apply this approach to a pair of coupled slots cut into an infinite perfectly conducting plane. Each slot is notched on either edge, with the complete two-slot system having only mirror symmetry. By modifying the relative size of the notches on either side of the slots, we show that a linear dispersion relation with a degeneracy with non-zero group velocity at the Brillouin zone boundary can be achieved. These properties, until now, only found in systems with glide symmetry are numerically and experimentally validated. We also show that these results can be used for the design of ultra-wideband one-dimensional leaky wave antennas in coplanar waveguide technology.

Place, publisher, year, edition, pages
AMER INST PHYSICS , 2017. Vol. 111, no 12, article id 121603
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Physical Sciences
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URN: urn:nbn:se:kth:diva-215823DOI: 10.1063/1.5000222ISI: 000411646300011Scopus ID: 2-s2.0-85029738210OAI: oai:DiVA.org:kth-215823DiVA, id: diva2:1149887
Note

QC 20171017

Available from: 2017-10-17 Created: 2017-10-17 Last updated: 2017-10-17Bibliographically approved

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Quevedo-Teruel, Oscar

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