A Bowl-Shaped Filtering Antenna with Wideband Cross-Band Scattering Mitigation for Dual-Band Base Stations

He, Y; Ding, C; Chang, C; Wei, G; Guo, YJ

A Bowl-Shaped Filtering Antenna with Wideband Cross-Band Scattering Mitigation for Dual-Band Base Stations

He, Y Ding, C

Chang, C Wei, G Guo, YJ

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

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Field	Value	Language
dc.contributor.author	He, Y
dc.contributor.author	Ding, C https://orcid.org/0000-0002-2629-1657
dc.contributor.author	Chang, C
dc.contributor.author	Wei, G
dc.contributor.author	Guo, YJ
dc.date.accessioned	2024-05-03T04:30:24Z
dc.date.available	2024-05-03T04:30:24Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Transactions on Antennas and Propagation, 2024, PP, (99), pp. 1-1
dc.identifier.issn	0018-926X
dc.identifier.issn	1558-2221
dc.identifier.uri	http://hdl.handle.net/10453/178613
dc.description.abstract	The strong cross-band scattering in dual-band base station arrays can cause degraded antenna performance, affecting the radiation performance of the antenna working in higher frequencies. This paper presents a filtered bowl-shaped low-band (LB) antenna covering 0.80-0.96 GHz for dual-band base station arrays, featuring effective wideband cross-band de-scattering capability in the high-band (HB). By incorporating specially designed helical filters into the LB radiators, a significant de-scattering HB bandwidth reaching 66.7% (1.36-2.72 GHz) of the LB antenna is achieved. To improve the LB impedance matching, specialized LC circuits are incorporated into the LB balun. These LC circuits, in conjunction with the baffles, also serve to ease the gain fluctuations of the HB antenna placed inside the LB antenna. In addition, the miniaturized aperture size of the LB antenna facilitates enhanced in-band isolation in the array. The LB antenna’s structural stability is guaranteed by the 3D-printed T-shaped dielectric supports. The measurement results of the fabricated dual-band array agree with the simulations, which validates the efficacy of this design.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	http://purl.org/au-research/grants/arc/DE200101347
dc.relation.ispartof	IEEE Transactions on Antennas and Propagation
dc.relation.isbasedon	10.1109/TAP.2024.3390563
dc.rights	info:eu-repo/semantics/restrictedAccess
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	A Bowl-Shaped Filtering Antenna with Wideband Cross-Band Scattering Mitigation for Dual-Band Base Stations
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/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
utslib.copyright.status	recently_added	*
dc.date.updated	2024-05-03T04:30:23Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

The strong cross-band scattering in dual-band base station arrays can cause degraded antenna performance, affecting the radiation performance of the antenna working in higher frequencies. This paper presents a filtered bowl-shaped low-band (LB) antenna covering 0.80-0.96 GHz for dual-band base station arrays, featuring effective wideband cross-band de-scattering capability in the high-band (HB). By incorporating specially designed helical filters into the LB radiators, a significant de-scattering HB bandwidth reaching 66.7% (1.36-2.72 GHz) of the LB antenna is achieved. To improve the LB impedance matching, specialized LC circuits are incorporated into the LB balun. These LC circuits, in conjunction with the baffles, also serve to ease the gain fluctuations of the HB antenna placed inside the LB antenna. In addition, the miniaturized aperture size of the LB antenna facilitates enhanced in-band isolation in the array. The LB antenna’s structural stability is guaranteed by the 3D-printed T-shaped dielectric supports. The measurement results of the fabricated dual-band array agree with the simulations, which validates the efficacy of this design.

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

http://hdl.handle.net/10453/178613