Ultra-Wideband Vertically Polarized Long-Slot Circular Phased Array

Wei, G; Wang, Y; He, Y; Ziolkowski, RW; Jay Guo, Y

Ultra-Wideband Vertically Polarized Long-Slot Circular Phased Array

Wei, G Wang, Y He, Y Ziolkowski, RW Jay Guo, Y

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Transactions on Antennas and Propagation, 2024, 72, (5), pp. 4161-4172
Issue Date:: 2024-05-01

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Field	Value	Language
dc.contributor.author	Wei, G
dc.contributor.author	Wang, Y
dc.contributor.author	He, Y
dc.contributor.author	Ziolkowski, RW
dc.contributor.author	Jay Guo, Y
dc.date.accessioned	2024-08-07T05:14:40Z
dc.date.available	2024-08-07T05:14:40Z
dc.date.issued	2024-05-01
dc.identifier.citation	IEEE Transactions on Antennas and Propagation, 2024, 72, (5), pp. 4161-4172
dc.identifier.issn	0018-926X
dc.identifier.issn	1558-2221
dc.identifier.uri	http://hdl.handle.net/10453/180287
dc.description.abstract	An ultra-wideband (UWB) vertically polarized (VP) long-slot circular phased array with compact size is presented. The design realizes a quasi-magnetic current sheet array. It consists of just one circular array instead of a typical cylindrical system, which employs multiple circular arrays to achieve radiated fields with the same properties. A 16-element array was fabricated and measured to demonstrate its azimuthally invariant radiating capabilities. Measurement results show that the developed array achieves a wider impedance bandwidth, commendable cross-polarization discrimination (XPD), and a significantly more compact design than previously reported systems. In its omnidirectional mode, the array exhibits a 107.07% bandwidth (VSWR ≤ 2.0 ) with an XPD level better than 19.5 dB. In its directional mode, the array operates over 100% bandwidth with an XPD level better than 20.9 dB. The prototype exhibits exceptional azimuthal out-of-roundness values better than 1.3 dB in its omnidirectional mode and scan-invariant radiation with a maximum deviation of only 0.8 dB in its directional mode.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Transactions on Antennas and Propagation
dc.relation.isbasedon	10.1109/TAP.2024.3373173
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.subject.classification	4008 Electrical engineering
dc.subject.classification	4009 Electronics, sensors and digital hardware
dc.title	Ultra-Wideband Vertically Polarized Long-Slot Circular Phased Array
dc.type	Journal Article
utslib.citation.volume	72
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/Strength - GBDTC - Global Big Data Technologies
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	University of Technology Sydney/All Manual Groups
pubs.organisational-group	University of Technology Sydney/All Manual Groups/Global Big Data Technologies Research Centre (GBDTC)
utslib.copyright.status	closed_access	*
dc.date.updated	2024-08-07T05:14:31Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	72
utslib.citation.issue	5

Abstract:

An ultra-wideband (UWB) vertically polarized (VP) long-slot circular phased array with compact size is presented. The design realizes a quasi-magnetic current sheet array. It consists of just one circular array instead of a typical cylindrical system, which employs multiple circular arrays to achieve radiated fields with the same properties. A 16-element array was fabricated and measured to demonstrate its azimuthally invariant radiating capabilities. Measurement results show that the developed array achieves a wider impedance bandwidth, commendable cross-polarization discrimination (XPD), and a significantly more compact design than previously reported systems. In its omnidirectional mode, the array exhibits a 107.07% bandwidth (VSWR ≤ 2.0 ) with an XPD level better than 19.5 dB. In its directional mode, the array operates over 100% bandwidth with an XPD level better than 20.9 dB. The prototype exhibits exceptional azimuthal out-of-roundness values better than 1.3 dB in its omnidirectional mode and scan-invariant radiation with a maximum deviation of only 0.8 dB in its directional mode.

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http://hdl.handle.net/10453/180287