3-D Printable Metal-Dielectric Metasurface for Risley Prism-Based Beam-Steering Antennas

Ali, MY; Lalbakhsh, A; Singh, K; Koziel, S; Golunski, L

3-D Printable Metal-Dielectric Metasurface for Risley Prism-Based Beam-Steering Antennas

Ali, MY Lalbakhsh, A Singh, K

Koziel, S Golunski, L

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Access, 2024, 12, (99), pp. 165143-165154
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Ali, MY
dc.contributor.author	Lalbakhsh, A
dc.contributor.author	Singh, K https://orcid.org/0000-0003-2708-194X
dc.contributor.author	Koziel, S
dc.contributor.author	Golunski, L
dc.date.accessioned	2025-01-28T08:48:12Z
dc.date.available	2025-01-28T08:48:12Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Access, 2024, 12, (99), pp. 165143-165154
dc.identifier.issn	2169-3536
dc.identifier.issn	2169-3536
dc.identifier.uri	http://hdl.handle.net/10453/184476
dc.description.abstract	A 3-D printable, planar, metal-dielectric metasurface-based, 2-D beam-steering system for aperture-type antennas is presented in this paper. This beam-steering system, also known as the near-field meta-steering system, comprises two fully passive phase-gradient metasurfaces placed in the antenna's near-field region to steer the radiation beam. To address the non-uniform electric field phase of the aperture antenna, phase correction is also incorporated into the bottom metasurface placed on top of the antenna aperture in its near-field to enhance the far-field radiation of the antenna. Near-field phase transformation and phased array antenna theory concepts are applied to design the proposed metasurfaces. Two types of metal-dielectric unit cells are implemented to provide a phase range of 360°. The height of each metasurface is only 6.25 mm ( 0.25λ0), and the height of the whole system is only 1.56λ0 at 12 GHz. The proposed beam-steering system with a resonant cavity antenna can steer the beam to a maximum of ±44° in the elevation plane and 360° in the azimuth plane with only a 1.4 dB (17 dB - 15.6 dB) deviation in directivity over the full steering range.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Access
dc.relation.isbasedon	10.1109/ACCESS.2024.3493426
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	08 Information and Computing Sciences, 09 Engineering, 10 Technology
dc.subject.classification	40 Engineering
dc.subject.classification	46 Information and computing sciences
dc.title	3-D Printable Metal-Dielectric Metasurface for Risley Prism-Based Beam-Steering Antennas
dc.type	Journal Article
utslib.citation.volume	12
utslib.for	08 Information and Computing Sciences
utslib.for	09 Engineering
utslib.for	10 Technology
pubs.organisational-group	University of Technology Sydney
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
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.updated	2025-01-28T08:48:11Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	12
utslib.citation.issue	99

Abstract:

A 3-D printable, planar, metal-dielectric metasurface-based, 2-D beam-steering system for aperture-type antennas is presented in this paper. This beam-steering system, also known as the near-field meta-steering system, comprises two fully passive phase-gradient metasurfaces placed in the antenna's near-field region to steer the radiation beam. To address the non-uniform electric field phase of the aperture antenna, phase correction is also incorporated into the bottom metasurface placed on top of the antenna aperture in its near-field to enhance the far-field radiation of the antenna. Near-field phase transformation and phased array antenna theory concepts are applied to design the proposed metasurfaces. Two types of metal-dielectric unit cells are implemented to provide a phase range of 360°. The height of each metasurface is only 6.25 mm ( 0.25λ0), and the height of the whole system is only 1.56λ0 at 12 GHz. The proposed beam-steering system with a resonant cavity antenna can steer the beam to a maximum of ±44° in the elevation plane and 360° in the azimuth plane with only a 1.4 dB (17 dB - 15.6 dB) deviation in directivity over the full steering range.

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http://hdl.handle.net/10453/184476