Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons

Abstract The electromagnetic vortex carrying orbital angular momentum (OAM), which is first studied at optical frequency, has begun to attract widespread attention in the field of radio-frequency/microwave. However, for the OAM mode generated by traditional single antennas, there are problems such a...

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Autores principales:	Lei Zhang, Min Deng, Weiwen Li, Guang Yang, Longfang Ye
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/39d0ec44c61a46cb9ab18e9bb11b4941
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id	oai:doaj.org-article:39d0ec44c61a46cb9ab18e9bb11b4941
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spelling	oai:doaj.org-article:39d0ec44c61a46cb9ab18e9bb11b49412021-12-05T12:12:58ZWideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons10.1038/s41598-021-02749-32045-2322https://doaj.org/article/39d0ec44c61a46cb9ab18e9bb11b49412021-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02749-3https://doaj.org/toc/2045-2322Abstract The electromagnetic vortex carrying orbital angular momentum (OAM), which is first studied at optical frequency, has begun to attract widespread attention in the field of radio-frequency/microwave. However, for the OAM mode generated by traditional single antennas, there are problems such as low order and narrow bandwidth, and complex structures such as dual-fed networks may be required. In this paper, based on spoof surface plasmon polariton (SSPP) mode leaky-wave antenna, a single-port traveling-wave ring is proposed to radiate high-order OAM modes working near the cut-off frequency of SSPP state. The achieved 12-order OAM mode within 9.1–10.1 GHz (relative bandwidth of 10.4%) has the main radiation direction close to the antenna surface, forming a plane spiral OAM (PSOAM) wave, which reduces the requirements for mode purity in practical applications. This SSPP ring using periodic units as radiating elements can be an effective radiator for broadband and large-capacity OAM multiplexing communications. The structural characteristics of single feed contribute to the integration of microwave circuits.Lei ZhangMin DengWeiwen LiGuang YangLongfang YeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lei Zhang Min Deng Weiwen Li Guang Yang Longfang Ye Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons
description	Abstract The electromagnetic vortex carrying orbital angular momentum (OAM), which is first studied at optical frequency, has begun to attract widespread attention in the field of radio-frequency/microwave. However, for the OAM mode generated by traditional single antennas, there are problems such as low order and narrow bandwidth, and complex structures such as dual-fed networks may be required. In this paper, based on spoof surface plasmon polariton (SSPP) mode leaky-wave antenna, a single-port traveling-wave ring is proposed to radiate high-order OAM modes working near the cut-off frequency of SSPP state. The achieved 12-order OAM mode within 9.1–10.1 GHz (relative bandwidth of 10.4%) has the main radiation direction close to the antenna surface, forming a plane spiral OAM (PSOAM) wave, which reduces the requirements for mode purity in practical applications. This SSPP ring using periodic units as radiating elements can be an effective radiator for broadband and large-capacity OAM multiplexing communications. The structural characteristics of single feed contribute to the integration of microwave circuits.
format	article
author	Lei Zhang Min Deng Weiwen Li Guang Yang Longfang Ye
author_facet	Lei Zhang Min Deng Weiwen Li Guang Yang Longfang Ye
author_sort	Lei Zhang
title	Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons
title_short	Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons
title_full	Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons
title_fullStr	Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons
title_full_unstemmed	Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons
title_sort	wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/39d0ec44c61a46cb9ab18e9bb11b4941
work_keys_str_mv	AT leizhang widebandandhighordermicrowavevortexbeamlauncherbasedonspoofsurfaceplasmonpolaritons AT mindeng widebandandhighordermicrowavevortexbeamlauncherbasedonspoofsurfaceplasmonpolaritons AT weiwenli widebandandhighordermicrowavevortexbeamlauncherbasedonspoofsurfaceplasmonpolaritons AT guangyang widebandandhighordermicrowavevortexbeamlauncherbasedonspoofsurfaceplasmonpolaritons AT longfangye widebandandhighordermicrowavevortexbeamlauncherbasedonspoofsurfaceplasmonpolaritons
_version_	1718372127321620480

Wideband and high-order microwave vortex-beam launcher based on spoof surface plasmon polaritons

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