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

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...

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Autores principales: Amarasinghe, Yasith, Mendis, Rajind, Shrestha, Rabi, Guerboukha, Hichem, Taiber, Jochen, Koch, Martin, Mittleman, Daniel M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7970861/
https://www.ncbi.nlm.nih.gov/pubmed/33664394
http://dx.doi.org/10.1038/s41598-021-84849-8
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author Amarasinghe, Yasith
Mendis, Rajind
Shrestha, Rabi
Guerboukha, Hichem
Taiber, Jochen
Koch, Martin
Mittleman, Daniel M.
author_facet Amarasinghe, Yasith
Mendis, Rajind
Shrestha, Rabi
Guerboukha, Hichem
Taiber, Jochen
Koch, Martin
Mittleman, Daniel M.
author_sort Amarasinghe, Yasith
collection PubMed
description 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.
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spelling pubmed-79708612021-03-19 Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens Amarasinghe, Yasith Mendis, Rajind Shrestha, Rabi Guerboukha, Hichem Taiber, Jochen Koch, Martin Mittleman, Daniel M. Sci Rep Article 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. Nature Publishing Group UK 2021-03-04 /pmc/articles/PMC7970861/ /pubmed/33664394 http://dx.doi.org/10.1038/s41598-021-84849-8 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Amarasinghe, Yasith
Mendis, Rajind
Shrestha, Rabi
Guerboukha, Hichem
Taiber, Jochen
Koch, Martin
Mittleman, Daniel M.
Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens
title 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_short 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
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7970861/
https://www.ncbi.nlm.nih.gov/pubmed/33664394
http://dx.doi.org/10.1038/s41598-021-84849-8
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