An Angle-Multiplexed Multifocal Method for D-Band 2D Beam-Scanning Transmitarray Leveraging 3D Transmission Line Component

Lai, J; Lv, X; Rahman, MM; Oni, MAI; Dey, S; Yang, Y

An Angle-Multiplexed Multifocal Method for D-Band 2D Beam-Scanning Transmitarray Leveraging 3D Transmission Line Component

Lai, J

Lv, X

Rahman, MM Oni, MAI Dey, S Yang, Y

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Publisher:: Institute of Electrical and Electronics Engineers (IEEE)
Publication Type:: Journal Article
Citation:: IEEE Antennas and Wireless Propagation Letters, 2024, PP, (99), pp. 1-5
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Lai, J https://orcid.org/0000-0001-5330-1569
dc.contributor.author	Lv, X https://orcid.org/0000-0003-4118-5411
dc.contributor.author	Rahman, MM
dc.contributor.author	Oni, MAI
dc.contributor.author	Dey, S
dc.contributor.author	Yang, Y https://orcid.org/0000-0001-7439-2156
dc.date.accessioned	2025-01-28T08:59:51Z
dc.date.available	2025-01-28T08:59:51Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Antennas and Wireless Propagation Letters, 2024, PP, (99), pp. 1-5
dc.identifier.issn	1536-1225
dc.identifier.issn	1548-5757
dc.identifier.uri	http://hdl.handle.net/10453/184501
dc.description.abstract	This paper proposes an angle-multiplexed multifocal method for designing a 2D beam-scanning transmitarray (TA). The angle-multiplexed method is commonly used to generate orbital angular momentum (OAM) multiplexing. The multifocal phase distribution (PD) is calculated using the angle-multiplexed and bifocal methods to achieve higher gain enhancement and 2D beam-scanning with a low scan loss without optimisation. The additive manufacturing technology is used to fabricate a 3D transmission line component. In the terahertz band, the transmitting and receiving (Tx-Rx) unit cell (UC) impedance matching can be affected by the Pancharatnam-Berry (P-B) method, and a 3D coaxial line is introduced to tackle this problem. For proof of concept, the prototype was fabricated. Feeded by a WR-06 waveguide probe, the proposed TA achieves a gain enhancement of 16.3 dB and ±30° 2D beam-scanning, simulated and measured 3-dB gain bandwidths of 19.6% and 16.3%, and the measured axial ratio (AR) bandwidth of 30.7%.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	http://purl.org/au-research/grants/arc/LE220100035
dc.relation	http://purl.org/au-research/grants/arc/LP210300004
dc.relation	http://purl.org/au-research/grants/arc/LP230200030
dc.relation.ispartof	IEEE Antennas and Wireless Propagation Letters
dc.relation.isbasedon	10.1109/LAWP.2024.3514615
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.subject.classification	4006 Communications engineering
dc.title	An Angle-Multiplexed Multifocal Method for D-Band 2D Beam-Scanning Transmitarray Leveraging 3D Transmission Line Component
dc.type	Journal Article
utslib.citation.volume	PP
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	*
dc.date.updated	2025-01-28T08:59:49Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

This paper proposes an angle-multiplexed multifocal method for designing a 2D beam-scanning transmitarray (TA). The angle-multiplexed method is commonly used to generate orbital angular momentum (OAM) multiplexing. The multifocal phase distribution (PD) is calculated using the angle-multiplexed and bifocal methods to achieve higher gain enhancement and 2D beam-scanning with a low scan loss without optimisation. The additive manufacturing technology is used to fabricate a 3D transmission line component. In the terahertz band, the transmitting and receiving (Tx-Rx) unit cell (UC) impedance matching can be affected by the Pancharatnam-Berry (P-B) method, and a 3D coaxial line is introduced to tackle this problem. For proof of concept, the prototype was fabricated. Feeded by a WR-06 waveguide probe, the proposed TA achieves a gain enhancement of 16.3 dB and ±30° 2D beam-scanning, simulated and measured 3-dB gain bandwidths of 19.6% and 16.3%, and the measured axial ratio (AR) bandwidth of 30.7%.

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http://hdl.handle.net/10453/184501