Wide-Angle Impedance Matching Using Glide-Symmetric Metasurfaces

This letter demonstrates that glide symmetry can be used to match the impedance of highly dense dielectric profiles in wide angle and broad bandwidth. Using glide-symmetric metasurfaces permits tuning the magnetic properties of materials, so high values of permittivity can be matched to free space i...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 30; no. 1; pp. 8 - 11
Main Authors Ebrahimpouri, M., Herran, L. F., Quevedo-Teruel, O.
Format Journal Article
LanguageEnglish
Published IEEE 01.01.2020
Subjects
Bandwidth
Dielectrics
Glide symmetry
Impedance
impedance matching
magneto-dielectric
metasurfaces
Permeability
Permittivity
Substrates
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Summary:This letter demonstrates that glide symmetry can be used to match the impedance of highly dense dielectric profiles in wide angle and broad bandwidth. Using glide-symmetric metasurfaces permits tuning the magnetic properties of materials, so high values of permittivity can be matched to free space in wideband. This matching is achieved without disturbing the performance of the device, since the refractive index remains fixed. The performance of the proposed matching method is validated through measurements for normal incidence. For oblique incidence, a hyperbolic dielectric lens is matched with glide-symmetric structures in simulations. These simulations demonstrate a smooth transmission of the fields, manifesting a well-matched profile of the lens.
ISSN:1531-1309
1558-1764
1558-1764
DOI:10.1109/LMWC.2019.2955074