Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications

Abstract A multi-layered chiral device manifesting asymmetric transmission (AT) facilitating one-way channeling of electromagnetic (EM) waves, based on the inherent polarization is presented. The designed metasurface depicts a high transmission contrast with an efficiency above 80% for an ultra-wide...

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Autores principales:	Syed Hussain Ali Bokhari, Hammad M. Cheema
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a825e7aa10434d02a1f4fc4583f0e306
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spelling	oai:doaj.org-article:a825e7aa10434d02a1f4fc4583f0e3062021-12-02T17:51:21ZUltra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications10.1038/s41598-021-91126-12045-2322https://doaj.org/article/a825e7aa10434d02a1f4fc4583f0e3062021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91126-1https://doaj.org/toc/2045-2322Abstract A multi-layered chiral device manifesting asymmetric transmission (AT) facilitating one-way channeling of electromagnetic (EM) waves, based on the inherent polarization is presented. The designed metasurface depicts a high transmission contrast with an efficiency above 80% for an ultra-wide operational range of 6.3–12.3 GHz, constituting a fractional bandwidth of 64%. As an additional feature, the reported metasurface yields robustness against oblique incidences up to 45 $$^\circ $$ ∘ while maintaining high transmission efficiency. This report also introduces a unique analogy of the AT based communication system with logic-gates by formulating its truth-table and logic circuit. Furthermore, new insights of AT magnitude’s dependence to oblique incidences are presented on the account of surface impedance mismatch due to TE and TM polarization with varying incidence angle. Moreover, avoidance of grating lobes and the associated transmission deterioration through utilization of electrically small periodic metasurface is presented. The results have been numerically and practically validated yielding state-of-the-art features. Operating within C and X band, the reported work is an ideal candidate for practical AT applications.Syed Hussain Ali BokhariHammad M. CheemaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Syed Hussain Ali Bokhari Hammad M. Cheema Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications
description	Abstract A multi-layered chiral device manifesting asymmetric transmission (AT) facilitating one-way channeling of electromagnetic (EM) waves, based on the inherent polarization is presented. The designed metasurface depicts a high transmission contrast with an efficiency above 80% for an ultra-wide operational range of 6.3–12.3 GHz, constituting a fractional bandwidth of 64%. As an additional feature, the reported metasurface yields robustness against oblique incidences up to 45 $$^\circ $$ ∘ while maintaining high transmission efficiency. This report also introduces a unique analogy of the AT based communication system with logic-gates by formulating its truth-table and logic circuit. Furthermore, new insights of AT magnitude’s dependence to oblique incidences are presented on the account of surface impedance mismatch due to TE and TM polarization with varying incidence angle. Moreover, avoidance of grating lobes and the associated transmission deterioration through utilization of electrically small periodic metasurface is presented. The results have been numerically and practically validated yielding state-of-the-art features. Operating within C and X band, the reported work is an ideal candidate for practical AT applications.
format	article
author	Syed Hussain Ali Bokhari Hammad M. Cheema
author_facet	Syed Hussain Ali Bokhari Hammad M. Cheema
author_sort	Syed Hussain Ali Bokhari
title	Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications
title_short	Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications
title_full	Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications
title_fullStr	Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications
title_full_unstemmed	Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications
title_sort	ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for c and x band applications
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a825e7aa10434d02a1f4fc4583f0e306
work_keys_str_mv	AT syedhussainalibokhari ultrawidebandwideangleasymmetrictransmissionbasedchiralmetasurfaceforcandxbandapplications AT hammadmcheema ultrawidebandwideangleasymmetrictransmissionbasedchiralmetasurfaceforcandxbandapplications
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Ultra-wideband, wide angle, asymmetric transmission based chiral metasurface for C and X band applications

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