Ka-Band Huygens Antenna Array with Very High Aperture Efficiency and Low Sidelobes

Lin, W; Ziolkowski, RW

Ka-Band Huygens Antenna Array with Very High Aperture Efficiency and Low Sidelobes

Lin, W Ziolkowski, RW

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Publisher:: Institute of Electrical and Electronics Engineers (IEEE)
Publication Type:: Journal Article
Citation:: IEEE Transactions on Antennas and Propagation, 2022, PP, (99), pp. 1-1
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Lin, W
dc.contributor.author	Ziolkowski, RW
dc.date.accessioned	2023-02-01T02:58:48Z
dc.date.available	2023-02-01T02:58:48Z
dc.date.issued	2022-01-01
dc.identifier.citation	IEEE Transactions on Antennas and Propagation, 2022, PP, (99), pp. 1-1
dc.identifier.issn	0018-926X
dc.identifier.issn	1558-2221
dc.identifier.uri	http://hdl.handle.net/10453/165758
dc.description.abstract	A <italic>Ka</italic>-band Huygens antenna array with extremely high aperture efficiency and low sidelobe levels is reported for 5G millimeterwave wireless applications. The basic array element is an innovative Huygens sub-array consisting of two open rectangular waveguides that form an aperture consisting of a 1×2 set of orthogonal, tightly-coupled electric and magnetic elements separated by a virtual gap that are balanced, in-phase and radiate Huygens cardioid patterns. A larger 8×16 element array is then realized with 64 of these 1×2 sub-arrays. With excitations of equal amplitude, the full broadside-radiating array achieves an aperture efficiency up to 97.5% in the operating bandwidth, which is very close to the 100% limit associated with an ideal uniform aperture distribution. Moreover, a highly-efficient and compact feed network with tapered-amplitude and in-phase excitations from the array center to its edges is designed to achieve sidelobe and backlobe levels less than –20 dB. The –10 dB impedance bandwidth covers 26.7 to 29.65 GHz and the peak realized aperture efficiency reaches 82%. A full-aluminum array prototype was fabricated with standard machining processes and tested. The measured performance characteristics agree well with their simulated values, confirming the efficacy of their designs.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartof	IEEE Transactions on Antennas and Propagation
dc.relation.isbasedon	10.1109/TAP.2022.3217179
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.title	Ka-Band Huygens Antenna Array with Very High Aperture Efficiency and Low Sidelobes
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	open_access	*
dc.date.updated	2023-02-01T02:58:35Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

A Ka-band Huygens antenna array with extremely high aperture efficiency and low sidelobe levels is reported for 5G millimeterwave wireless applications. The basic array element is an innovative Huygens sub-array consisting of two open rectangular waveguides that form an aperture consisting of a 1×2 set of orthogonal, tightly-coupled electric and magnetic elements separated by a virtual gap that are balanced, in-phase and radiate Huygens cardioid patterns. A larger 8×16 element array is then realized with 64 of these 1×2 sub-arrays. With excitations of equal amplitude, the full broadside-radiating array achieves an aperture efficiency up to 97.5% in the operating bandwidth, which is very close to the 100% limit associated with an ideal uniform aperture distribution. Moreover, a highly-efficient and compact feed network with tapered-amplitude and in-phase excitations from the array center to its edges is designed to achieve sidelobe and backlobe levels less than –20 dB. The –10 dB impedance bandwidth covers 26.7 to 29.65 GHz and the peak realized aperture efficiency reaches 82%. A full-aluminum array prototype was fabricated with standard machining processes and tested. The measured performance characteristics agree well with their simulated values, confirming the efficacy of their designs.

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http://hdl.handle.net/10453/165758