Metasurface Antennas: New Models, Applications and Realizations

Abstract This paper presents new designs, implementation and experiments of metasurface (MTS) antennas constituted by subwavelength elements printed on a grounded dielectric slab. These antennas exploit the interaction between a cylindrical surface wave (SW) wavefront and an anisotropic impedance bo...

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Autores principales:	Marco Faenzi, Gabriele Minatti, David González-Ovejero, Francesco Caminita, Enrica Martini, Cristian Della Giovampaola, Stefano Maci
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1603265c5bd849d38854cf53b6a4218d
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spelling	oai:doaj.org-article:1603265c5bd849d38854cf53b6a4218d2021-12-02T15:08:08ZMetasurface Antennas: New Models, Applications and Realizations10.1038/s41598-019-46522-z2045-2322https://doaj.org/article/1603265c5bd849d38854cf53b6a4218d2019-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-46522-zhttps://doaj.org/toc/2045-2322Abstract This paper presents new designs, implementation and experiments of metasurface (MTS) antennas constituted by subwavelength elements printed on a grounded dielectric slab. These antennas exploit the interaction between a cylindrical surface wave (SW) wavefront and an anisotropic impedance boundary condition (BC) to produce an almost arbitrary aperture field. They are extremely thin and excited by a simple in-plane monopole. By tailoring the BC through the shaping of the printed elements, these antennas can be largely customized in terms of beam shape, bandwidth and polarization. In this paper, we describe new designs and their implementation and measurements. It is experimentally shown for the first time that these antennas can have aperture efficiency up to 70%, a bandwidth up to 30%, they can produce two different direction beams of high-gain and similar beams at two different frequencies, showing performances never reached before.Marco FaenziGabriele MinattiDavid González-OvejeroFrancesco CaminitaEnrica MartiniCristian Della GiovampaolaStefano MaciNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-14 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Marco Faenzi Gabriele Minatti David González-Ovejero Francesco Caminita Enrica Martini Cristian Della Giovampaola Stefano Maci Metasurface Antennas: New Models, Applications and Realizations
description	Abstract This paper presents new designs, implementation and experiments of metasurface (MTS) antennas constituted by subwavelength elements printed on a grounded dielectric slab. These antennas exploit the interaction between a cylindrical surface wave (SW) wavefront and an anisotropic impedance boundary condition (BC) to produce an almost arbitrary aperture field. They are extremely thin and excited by a simple in-plane monopole. By tailoring the BC through the shaping of the printed elements, these antennas can be largely customized in terms of beam shape, bandwidth and polarization. In this paper, we describe new designs and their implementation and measurements. It is experimentally shown for the first time that these antennas can have aperture efficiency up to 70%, a bandwidth up to 30%, they can produce two different direction beams of high-gain and similar beams at two different frequencies, showing performances never reached before.
format	article
author	Marco Faenzi Gabriele Minatti David González-Ovejero Francesco Caminita Enrica Martini Cristian Della Giovampaola Stefano Maci
author_facet	Marco Faenzi Gabriele Minatti David González-Ovejero Francesco Caminita Enrica Martini Cristian Della Giovampaola Stefano Maci
author_sort	Marco Faenzi
title	Metasurface Antennas: New Models, Applications and Realizations
title_short	Metasurface Antennas: New Models, Applications and Realizations
title_full	Metasurface Antennas: New Models, Applications and Realizations
title_fullStr	Metasurface Antennas: New Models, Applications and Realizations
title_full_unstemmed	Metasurface Antennas: New Models, Applications and Realizations
title_sort	metasurface antennas: new models, applications and realizations
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/1603265c5bd849d38854cf53b6a4218d
work_keys_str_mv	AT marcofaenzi metasurfaceantennasnewmodelsapplicationsandrealizations AT gabrieleminatti metasurfaceantennasnewmodelsapplicationsandrealizations AT davidgonzalezovejero metasurfaceantennasnewmodelsapplicationsandrealizations AT francescocaminita metasurfaceantennasnewmodelsapplicationsandrealizations AT enricamartini metasurfaceantennasnewmodelsapplicationsandrealizations AT cristiandellagiovampaola metasurfaceantennasnewmodelsapplicationsandrealizations AT stefanomaci metasurfaceantennasnewmodelsapplicationsandrealizations
_version_	1718388235131944960

Metasurface Antennas: New Models, Applications and Realizations

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