Terahertz Angle-Multiplexed Metasurface for Multi-Dimensional Multiplexing of Spatial and Frequency Domains

Wang, L; Yang, Y; Deng, L; Hong, W; Zhang, C; Li, S

Terahertz Angle-Multiplexed Metasurface for Multi-Dimensional Multiplexing of Spatial and Frequency Domains

Wang, L Yang, Y

Deng, L Hong, W Zhang, C Li, S

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: Advanced Theory and Simulations, 2020, 3, (10)
Issue Date:: 2020-10-01

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Field	Value	Language
dc.contributor.author	Wang, L
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156
dc.contributor.author	Deng, L
dc.contributor.author	Hong, W
dc.contributor.author	Zhang, C
dc.contributor.author	Li, S
dc.date.accessioned	2021-03-05T04:34:29Z
dc.date.available	2021-03-05T04:34:29Z
dc.date.issued	2020-10-01
dc.identifier.citation	Advanced Theory and Simulations, 2020, 3, (10)
dc.identifier.issn	2513-0390
dc.identifier.issn	2513-0390
dc.identifier.uri	http://hdl.handle.net/10453/146814
dc.description.abstract	© 2020 Wiley-VCH GmbH Increasing information capacity is crucial for high-capacity and high-speed communication, especially for sub-terahertz communication. Over the last decade, spatial multiplexing based on the orbital angular momentum (OAM) by adopting a multi-mode OAM metasurface has attracted a lot of attention. However, current metasurface-based OAM multiplexing methods suffer from complex and limited multiplexing channels. In this paper, a novel method to realize multi-dimensional multiplexing combining OAM and frequency based on an angle-multiplexed metasurface over a broadband terahertz region is proposed and investigated. A frequency-independent phase profile formula of the angle-multiplexed metasurface is derived. A reflective metasurface operating from 0.25 to 0.35 terahertz (THz) is designed based on this formula. For proof of concept, nine-channel multiplexing is illustrated based on this novel method. The simulation results verify that nine-channel off-axis left-hand circularly polarized beams are converted to nine orthogonal coaxial beams. Besides, according to the conventional method for OAM multiplexing, an angle-multiplexed reflective metasurface working at 0.3 THz is designed for comparison. The simulation results show that only three-channel multiplexing can be obtained by this model with nine-channel incident waves. The proposed method has a great potential to enhance the transmission capacity of the communication system.
dc.language	English
dc.publisher	WILEY-V C H VERLAG GMBH
dc.relation.ispartof	Advanced Theory and Simulations
dc.relation.isbasedon	10.1002/adts.202000115
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Terahertz Angle-Multiplexed Metasurface for Multi-Dimensional Multiplexing of Spatial and Frequency Domains
dc.type	Journal Article
utslib.citation.volume	3
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-03-05T04:34:24Z
pubs.issue	10
pubs.publication-status	Published
pubs.volume	3
utslib.citation.issue	10

Abstract:

© 2020 Wiley-VCH GmbH Increasing information capacity is crucial for high-capacity and high-speed communication, especially for sub-terahertz communication. Over the last decade, spatial multiplexing based on the orbital angular momentum (OAM) by adopting a multi-mode OAM metasurface has attracted a lot of attention. However, current metasurface-based OAM multiplexing methods suffer from complex and limited multiplexing channels. In this paper, a novel method to realize multi-dimensional multiplexing combining OAM and frequency based on an angle-multiplexed metasurface over a broadband terahertz region is proposed and investigated. A frequency-independent phase profile formula of the angle-multiplexed metasurface is derived. A reflective metasurface operating from 0.25 to 0.35 terahertz (THz) is designed based on this formula. For proof of concept, nine-channel multiplexing is illustrated based on this novel method. The simulation results verify that nine-channel off-axis left-hand circularly polarized beams are converted to nine orthogonal coaxial beams. Besides, according to the conventional method for OAM multiplexing, an angle-multiplexed reflective metasurface working at 0.3 THz is designed for comparison. The simulation results show that only three-channel multiplexing can be obtained by this model with nine-channel incident waves. The proposed method has a great potential to enhance the transmission capacity of the communication system.

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http://hdl.handle.net/10453/146814