Designing Chip-Feed High-Gain Millimeter-Wave Resonant Cavity Antenna (RCA) Array and Optimization of Beam Steering Metasurface

Sayem, ASM; Esselle, KP; Thalakotuna, DN; Attygalle, M; Singh, K

Designing Chip-Feed High-Gain Millimeter-Wave Resonant Cavity Antenna (RCA) Array and Optimization of Beam Steering Metasurface

Sayem, ASM Esselle, KP Thalakotuna, DN Attygalle, M Singh, K

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Micromachines, 16, (2), pp. 164

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Field	Value	Language
dc.contributor.author	Sayem, ASM
dc.contributor.author	Esselle, KP
dc.contributor.author	Thalakotuna, DN
dc.contributor.author	Attygalle, M
dc.contributor.author	Singh, K https://orcid.org/0000-0003-2708-194X
dc.date.accessioned	2025-02-19T05:39:02Z
dc.date.available	2025-02-19T05:39:02Z
dc.identifier.citation	Micromachines, 16, (2), pp. 164
dc.identifier.issn	2072-666X
dc.identifier.issn	2072-666X
dc.identifier.uri	http://hdl.handle.net/10453/185207
dc.description.abstract	<jats:p>In this article, a chip-fed millimeter-wave high-gain antenna system with in-antenna power combining capability is presented. A low-profile resonant cavity antenna (RCA) array is fed by multiple spherical dielectric resonators (DRs), demonstrating its multi-feed capabilities. Each of the DRs is fed by two microstrip resonators on a planar circuit board. A printed superstrate is used in the proposed RCA as the partially reflecting superstrate (PRS), which makes the antenna profile small. To increase the directivity and gain, a 2 × 2 RCA array is developed. The demonstrated design shows a prominent peak gain of 25.03 dBi, a radiation efficiency of more than 80% and 3.38 GHz 3 db gain-bandwidth while maintaining a low profile. To steer the beam of the demonstrated 2 × 2 RCA array in a wide angular range with a low side-lobe-level, two planar all-dielectric passive beam steering metasurfaces have been designed and optimized. A detailed analysis of the optimization procedure is presented in this article. This numerical investigation is vitally important for realizing beam steering metasurfaces with suppressed side-lobe-level, wide bandwidth, excellent efficiency and less complexity.</jats:p>
dc.language	en
dc.publisher	MDPI
dc.relation.ispartof	Micromachines
dc.relation.isbasedon	10.3390/mi16020164
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	1007 Nanotechnology
dc.subject.classification	4018 Nanotechnology
dc.title	Designing Chip-Feed High-Gain Millimeter-Wave Resonant Cavity Antenna (RCA) Array and Optimization of Beam Steering Metasurface
dc.type	Journal Article
utslib.citation.volume	16
utslib.for	1007 Nanotechnology
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 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-02-19T05:39:00Z
pubs.issue	2
pubs.publication-status	Published online
pubs.volume	16
utslib.citation.issue	2

Abstract:

In this article, a chip-fed millimeter-wave high-gain antenna system with in-antenna power combining capability is presented. A low-profile resonant cavity antenna (RCA) array is fed by multiple spherical dielectric resonators (DRs), demonstrating its multi-feed capabilities. Each of the DRs is fed by two microstrip resonators on a planar circuit board. A printed superstrate is used in the proposed RCA as the partially reflecting superstrate (PRS), which makes the antenna profile small. To increase the directivity and gain, a 2 × 2 RCA array is developed. The demonstrated design shows a prominent peak gain of 25.03 dBi, a radiation efficiency of more than 80% and 3.38 GHz 3 db gain-bandwidth while maintaining a low profile. To steer the beam of the demonstrated 2 × 2 RCA array in a wide angular range with a low side-lobe-level, two planar all-dielectric passive beam steering metasurfaces have been designed and optimized. A detailed analysis of the optimization procedure is presented in this article. This numerical investigation is vitally important for realizing beam steering metasurfaces with suppressed side-lobe-level, wide bandwidth, excellent efficiency and less complexity.

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http://hdl.handle.net/10453/185207