Near-Field Calibration of Millimeter-Wave Massive MIMO Antenna Array Using Sphere Reflectors

Liu, J; Wu, K; Su, T; Pang, G; Chen, SL

Near-Field Calibration of Millimeter-Wave Massive MIMO Antenna Array Using Sphere Reflectors

Liu, J Wu, K

Su, T Pang, G Chen, SL

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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	Liu, J
dc.contributor.author	Wu, K https://orcid.org/0000-0003-1298-6404
dc.contributor.author	Su, T
dc.contributor.author	Pang, G
dc.contributor.author	Chen, SL
dc.date.accessioned	2024-07-06T15:40:34Z
dc.date.available	2024-07-06T15:40:34Z
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/10453/179734
dc.description.abstract	Millimeter-wave (mmWave) massive multiple-input and multiple-output (MIMO) array-based frequency-modulated continuous wave (FMCW) radar can deliver high-resolution angle, range and Doppler estimation and imaging for 6G systems. However, such arrays generally suffer from severe amplitude and phase imbalances over massive antennas and must be properly calibrated. This letter develops an efficient calibration scheme based on spherical reflectors, which can readily apply to most commercial mmWave FMCW radars in regular labs. We model and analyze the impact of different error sources and accordingly convert the problem into calculating the propagation path delay between each pair of transceiving antennas. An accurate method is developed for the calculation, with low-complexity closed-form solutions derived. Simulation and over-the-air experiments with around 1.3 million transceiver pairs are provided, validating the high accuracy of the developed calibration method and its effectiveness in practical imaging applications.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartof	IEEE Antennas and Wireless Propagation Letters
dc.relation.isbasedon	10.1109/LAWP.2024.3405722
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	Near-Field Calibration of Millimeter-Wave Massive MIMO Antenna Array Using Sphere Reflectors
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	embargoed	*
utslib.copyright.embargo	2026-05-29T00:00:00+1000Z
dc.date.updated	2024-07-06T15:40:31Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

Millimeter-wave (mmWave) massive multiple-input and multiple-output (MIMO) array-based frequency-modulated continuous wave (FMCW) radar can deliver high-resolution angle, range and Doppler estimation and imaging for 6G systems. However, such arrays generally suffer from severe amplitude and phase imbalances over massive antennas and must be properly calibrated. This letter develops an efficient calibration scheme based on spherical reflectors, which can readily apply to most commercial mmWave FMCW radars in regular labs. We model and analyze the impact of different error sources and accordingly convert the problem into calculating the propagation path delay between each pair of transceiving antennas. An accurate method is developed for the calculation, with low-complexity closed-form solutions derived. Simulation and over-the-air experiments with around 1.3 million transceiver pairs are provided, validating the high accuracy of the developed calibration method and its effectiveness in practical imaging applications.

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http://hdl.handle.net/10453/179734