Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens

Abstract The design of antennas for terahertz systems remains a significant challenge. These antennas must provide very high gain to overcome significant free-space path loss, which limits their ability to broadcast or receive a beam over a wide angular range. To circumvent this limitation, here we...

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Autores principales:	Yasith Amarasinghe, Rajind Mendis, Rabi Shrestha, Hichem Guerboukha, Jochen Taiber, Martin Koch, Daniel M. Mittleman
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3fe020bec2ec40adb663f0e552565f3b
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spelling	oai:doaj.org-article:3fe020bec2ec40adb663f0e552565f3b2021-12-02T13:30:50ZBroadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens10.1038/s41598-021-84849-82045-2322https://doaj.org/article/3fe020bec2ec40adb663f0e552565f3b2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84849-8https://doaj.org/toc/2045-2322Abstract The design of antennas for terahertz systems remains a significant challenge. These antennas must provide very high gain to overcome significant free-space path loss, which limits their ability to broadcast or receive a beam over a wide angular range. To circumvent this limitation, here we describe a new device concept, based on the application of quasi-conformal transformation optics to the traditional Luneburg lens. This device offers the possibility for wide-angle beam steering and beam reception over a broad bandwidth, scalable to any frequency band in the THz range.Yasith AmarasingheRajind MendisRabi ShresthaHichem GuerboukhaJochen TaiberMartin KochDaniel M. MittlemanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yasith Amarasinghe Rajind Mendis Rabi Shrestha Hichem Guerboukha Jochen Taiber Martin Koch Daniel M. Mittleman Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens
description	Abstract The design of antennas for terahertz systems remains a significant challenge. These antennas must provide very high gain to overcome significant free-space path loss, which limits their ability to broadcast or receive a beam over a wide angular range. To circumvent this limitation, here we describe a new device concept, based on the application of quasi-conformal transformation optics to the traditional Luneburg lens. This device offers the possibility for wide-angle beam steering and beam reception over a broad bandwidth, scalable to any frequency band in the THz range.
format	article
author	Yasith Amarasinghe Rajind Mendis Rabi Shrestha Hichem Guerboukha Jochen Taiber Martin Koch Daniel M. Mittleman
author_facet	Yasith Amarasinghe Rajind Mendis Rabi Shrestha Hichem Guerboukha Jochen Taiber Martin Koch Daniel M. Mittleman
author_sort	Yasith Amarasinghe
title	Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens
title_short	Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens
title_full	Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens
title_fullStr	Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens
title_full_unstemmed	Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens
title_sort	broadband wide-angle terahertz antenna based on the application of transformation optics to a luneburg lens
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3fe020bec2ec40adb663f0e552565f3b
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Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens

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