A 3-D Printed 140 GHz Multifocal Dielectric Transmitarray Antenna for 2-D Mechanical Beam Scanning

Lai, J; Lv, X; Yang, Y

A 3-D Printed 140 GHz Multifocal Dielectric Transmitarray Antenna for 2-D Mechanical Beam Scanning

Lai, J

Lv, X Yang, Y

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Antennas and Wireless Propagation Letters, 2024, 23, (4), pp. 1366-1370
Issue Date:: 2024-04-01

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Field	Value	Language
dc.contributor.author	Lai, J https://orcid.org/0000-0001-5330-1569
dc.contributor.author	Lv, X
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156
dc.date.accessioned	2024-06-19T10:16:58Z
dc.date.available	2024-06-19T10:16:58Z
dc.date.issued	2024-04-01
dc.identifier.citation	IEEE Antennas and Wireless Propagation Letters, 2024, 23, (4), pp. 1366-1370
dc.identifier.issn	1536-1225
dc.identifier.issn	1548-5757
dc.identifier.uri	http://hdl.handle.net/10453/179579
dc.description.abstract	In this letter, a 3-D printed multifocal all-dielectric transmitarray antenna (TAA) is proposed for 2-D beam scanning at 140 GHz. Taking advantage of the TAA element phase shifting by varying incident angles, the proposed TAA can meet the phase compensation requirement for the feed beams from multiple ports with different incident angles. The genetic algorithm (GA) is employed to optimize the phase distribution at the sub-terahertz band. The measured 3 dB gain bandwidths of the proposed TAA are 14.3%. By mechanically rotating the feed horn, the multifocal TAA can realise a measured peak gain of 26.6 dBi at 140 GHz with a higher gain improvement of 12 dB and a ±30° beam-scanning range and 2.1 dB scan loss in E-plane, H-plane, and D-plane (diagonal-plane, φ = 45°). The proposed TAA demonstrates a broadband 2-D mechanical beam-scanning performance in the sub-terahertz band.
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.2024.3355940
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.subject.classification	4006 Communications engineering
dc.title	A 3-D Printed 140 GHz Multifocal Dielectric Transmitarray Antenna for 2-D Mechanical Beam Scanning
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	open_access	*
utslib.copyright.embargo	2026-01-19T00:00:00+1000Z
dc.date.updated	2024-06-19T10:16:55Z
pubs.issue	4
pubs.publication-status	Published
pubs.volume	23
utslib.citation.issue	4

Abstract:

In this letter, a 3-D printed multifocal all-dielectric transmitarray antenna (TAA) is proposed for 2-D beam scanning at 140 GHz. Taking advantage of the TAA element phase shifting by varying incident angles, the proposed TAA can meet the phase compensation requirement for the feed beams from multiple ports with different incident angles. The genetic algorithm (GA) is employed to optimize the phase distribution at the sub-terahertz band. The measured 3 dB gain bandwidths of the proposed TAA are 14.3%. By mechanically rotating the feed horn, the multifocal TAA can realise a measured peak gain of 26.6 dBi at 140 GHz with a higher gain improvement of 12 dB and a ±30° beam-scanning range and 2.1 dB scan loss in E-plane, H-plane, and D-plane (diagonal-plane, φ = 45°). The proposed TAA demonstrates a broadband 2-D mechanical beam-scanning performance in the sub-terahertz band.

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http://hdl.handle.net/10453/179579