Multiband and multifunctional polarization converter using an asymmetric metasurface

Abstract A compact and asymmetric multi-band reflective polarization converter metasurface has been offered in this paper. The proposed simple converter can effectively convert an incident linearly polarized EM wave to its orthogonal counterpart and circular polarized waves (RHCP and LHCP) at two fr...

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Autores principales:	Negin Pouyanfar, Javad Nourinia, Changiz Ghobadi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2842ff0fff9c4bec907b5404ceddf713
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spelling	oai:doaj.org-article:2842ff0fff9c4bec907b5404ceddf7132021-12-02T13:41:23ZMultiband and multifunctional polarization converter using an asymmetric metasurface10.1038/s41598-021-88771-x2045-2322https://doaj.org/article/2842ff0fff9c4bec907b5404ceddf7132021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88771-xhttps://doaj.org/toc/2045-2322Abstract A compact and asymmetric multi-band reflective polarization converter metasurface has been offered in this paper. The proposed simple converter can effectively convert an incident linearly polarized EM wave to its orthogonal counterpart and circular polarized waves (RHCP and LHCP) at two frequency bands. The design consists of a square with two curves on the top right and lower left corners and a square Split Ring Resonator (SRR) responsible for linear-to-linear and linear-to-circular polarization conversions, respectively. The simulated results show that the converter successfully transforms a y-polarized incident wave to its orthogonal counterpart in a frequency range of 15.5–16.5 GHz with unity conversion at 16 GHz and circularly-polarized (RHCP) wave at 13 GHz and (LHCP) at 18 GHz, verified through the fabricated and measured sample. Wide angular stability up to 60° oblique incidence along with high efficiency reveals the good applicability of the structure. Moreover, the root cause of the cross-polarization conversion has been analyzed and confirmed through Bi-Mode Foster equivalent circuit and surface current distribution as well. Finally, a fabricated prototype is tested to validate the simulated results through measurement.Negin PouyanfarJavad NouriniaChangiz GhobadiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Negin Pouyanfar Javad Nourinia Changiz Ghobadi Multiband and multifunctional polarization converter using an asymmetric metasurface
description	Abstract A compact and asymmetric multi-band reflective polarization converter metasurface has been offered in this paper. The proposed simple converter can effectively convert an incident linearly polarized EM wave to its orthogonal counterpart and circular polarized waves (RHCP and LHCP) at two frequency bands. The design consists of a square with two curves on the top right and lower left corners and a square Split Ring Resonator (SRR) responsible for linear-to-linear and linear-to-circular polarization conversions, respectively. The simulated results show that the converter successfully transforms a y-polarized incident wave to its orthogonal counterpart in a frequency range of 15.5–16.5 GHz with unity conversion at 16 GHz and circularly-polarized (RHCP) wave at 13 GHz and (LHCP) at 18 GHz, verified through the fabricated and measured sample. Wide angular stability up to 60° oblique incidence along with high efficiency reveals the good applicability of the structure. Moreover, the root cause of the cross-polarization conversion has been analyzed and confirmed through Bi-Mode Foster equivalent circuit and surface current distribution as well. Finally, a fabricated prototype is tested to validate the simulated results through measurement.
format	article
author	Negin Pouyanfar Javad Nourinia Changiz Ghobadi
author_facet	Negin Pouyanfar Javad Nourinia Changiz Ghobadi
author_sort	Negin Pouyanfar
title	Multiband and multifunctional polarization converter using an asymmetric metasurface
title_short	Multiband and multifunctional polarization converter using an asymmetric metasurface
title_full	Multiband and multifunctional polarization converter using an asymmetric metasurface
title_fullStr	Multiband and multifunctional polarization converter using an asymmetric metasurface
title_full_unstemmed	Multiband and multifunctional polarization converter using an asymmetric metasurface
title_sort	multiband and multifunctional polarization converter using an asymmetric metasurface
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2842ff0fff9c4bec907b5404ceddf713
work_keys_str_mv	AT neginpouyanfar multibandandmultifunctionalpolarizationconverterusinganasymmetricmetasurface AT javadnourinia multibandandmultifunctionalpolarizationconverterusinganasymmetricmetasurface AT changizghobadi multibandandmultifunctionalpolarizationconverterusinganasymmetricmetasurface
_version_	1718392544763576320

Multiband and multifunctional polarization converter using an asymmetric metasurface

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