Dual-Band Printed Near-Field Metasurface with Independent Phase Transformation for Enhanced Antenna Gain

Nabeel, MI; Afzal, MU; Singh, K; Thalakotuna, DN; Esselle, KP

Dual-Band Printed Near-Field Metasurface with Independent Phase Transformation for Enhanced Antenna Gain

Nabeel, MI Afzal, MU Singh, K

Thalakotuna, DN Esselle, KP

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Antennas and Wireless Propagation Letters, 2024, 23, (8), pp. 2401-2405
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Nabeel, MI
dc.contributor.author	Afzal, MU
dc.contributor.author	Singh, K https://orcid.org/0000-0003-2708-194X
dc.contributor.author	Thalakotuna, DN
dc.contributor.author	Esselle, KP
dc.date.accessioned	2024-08-21T05:46:18Z
dc.date.available	2024-08-21T05:46:18Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Antennas and Wireless Propagation Letters, 2024, 23, (8), pp. 2401-2405
dc.identifier.issn	1536-1225
dc.identifier.issn	1548-5757
dc.identifier.uri	http://hdl.handle.net/10453/180514
dc.description.abstract	This letter proposes a near-field dual-band printed metasurface (DBPM) to realise a high-gain front-end antenna for full-duplex Ka-Band communication systems. The base of the antenna is a shortened horn, and DBPM is placed on its face to improve uniformity in its near-field phase distribution. The fundamental cell of the DBPM uses two distinct resonating elements, a cross slot, and a square slot, to have independent phase control at both frequency bands, increasing the gain of the horn and resulting in half the length of the antenna system as compared to a conventional horn antenna with a similar gain value. Measurements of the prototype reveal outstanding radiation performance, with a wider 3-dB gain bandwidth of almost 15% at the lower frequency band and 3% at the higher frequency band. Furthermore, the antenna gain is increased by 12-13 dB in each band. The total longitudinal height of the antenna, including the DBPM, is <inline-formula><tex-math notation="LaTeX">$2.5\lambda _{L}$</tex-math></inline-formula> and <inline-formula><tex-math notation="LaTeX">$3.75\lambda _{H}$</tex-math></inline-formula>, where <inline-formula><tex-math notation="LaTeX">$\lambda _{L}$</tex-math></inline-formula> and <inline-formula><tex-math notation="LaTeX">$\lambda _{H}$</tex-math></inline-formula> are the free space wavelengths at the lower and higher frequencies, respectively, while the aperture diameter is 8.4<inline-formula><tex-math notation="LaTeX">$\lambda _{H}$</tex-math></inline-formula>. The motivation of this research aligns with the demands of modern connectivity solutions, providing a simplified manufacturing approach for designing compact and full-duplex high-gain antenna systems.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Antennas and Wireless Propagation Letters
dc.relation.isbasedon	10.1109/LAWP.2024.3393239
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.subject.classification	4006 Communications engineering
dc.title	Dual-Band Printed Near-Field Metasurface with Independent Phase Transformation for Enhanced Antenna Gain
dc.type	Journal Article
utslib.citation.volume	23
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1005 Communications Technologies
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	closed_access	*
dc.date.updated	2024-08-21T05:46:12Z
pubs.issue	8
pubs.publication-status	Published
pubs.volume	23
utslib.citation.issue	8

Abstract:

This letter proposes a near-field dual-band printed metasurface (DBPM) to realise a high-gain front-end antenna for full-duplex Ka-Band communication systems. The base of the antenna is a shortened horn, and DBPM is placed on its face to improve uniformity in its near-field phase distribution. The fundamental cell of the DBPM uses two distinct resonating elements, a cross slot, and a square slot, to have independent phase control at both frequency bands, increasing the gain of the horn and resulting in half the length of the antenna system as compared to a conventional horn antenna with a similar gain value. Measurements of the prototype reveal outstanding radiation performance, with a wider 3-dB gain bandwidth of almost 15% at the lower frequency band and 3% at the higher frequency band. Furthermore, the antenna gain is increased by 12-13 dB in each band. The total longitudinal height of the antenna, including the DBPM, is

$2.5\lambda _{L}$

and

$3.75\lambda _{H}$

, where

$\lambda _{L}$

and

$\lambda _{H}$

are the free space wavelengths at the lower and higher frequencies, respectively, while the aperture diameter is 8.4

$\lambda _{H}$

. The motivation of this research aligns with the demands of modern connectivity solutions, providing a simplified manufacturing approach for designing compact and full-duplex high-gain antenna systems.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/180514