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Volume 15
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10.3390/mi15050584
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Article

A Dual-Band 8-Antenna Array Design for 5G/WiFi 5 Metal-Frame Smartphone Applications

by
Huiyang Li
,
Shanshan Xiao
,
Lefei He
,
Qibo Cai
and
Gui Liu
*
College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China
*
Author to whom correspondence should be addressed.
Micromachines 2024, 15(5), 584; https://doi.org/10.3390/mi15050584
Submission received: 5 February 2024 / Revised: 25 March 2024 / Accepted: 2 April 2024 / Published: 28 April 2024
(This article belongs to the Special Issue Recent Advancements in Flexible, Reconfigurable and Wearable Antennas for 5G and Beyond)
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Abstract

This paper presents a dual-band 8-port multiple-input multiple-output (MIMO) antenna specifically designed for fifth-generation (5G) smartphones, featuring two open-slot metal frames. To enhance impedance matching and improve isolation between adjacent antenna elements, each antenna element employed a coupling feed. All simulation results in this paper come from Ansys HFSS. The operational frequency bands of the proposed antenna spanned 3.36–4.2 GHz for the lower band and 4.37–5.95 GHz for the higher band, covering 5G New Radio (NR) bands N78 (3.4–3.6 GHz) and N79 (4.4–4.9 GHz), as well as WiFi 5 (5.15–5.85 GHz). Notably, the antenna demonstrated outstanding isolation exceeding 16.5 dB within the specified operating bands. The exceptional performance positions the proposed antenna as a promising candidate for integration into 5G metal-frame smartphones.
Keywords: dual-band antenna; MIMO antenna; metal frame; smartphone; 5G antenna dual-band antenna; MIMO antenna; metal frame; smartphone; 5G antenna

Share and Cite

MDPI and ACS Style

Li, H.; Xiao, S.; He, L.; Cai, Q.; Liu, G. A Dual-Band 8-Antenna Array Design for 5G/WiFi 5 Metal-Frame Smartphone Applications. Micromachines 2024, 15, 584. https://doi.org/10.3390/mi15050584

AMA Style

Li H, Xiao S, He L, Cai Q, Liu G. A Dual-Band 8-Antenna Array Design for 5G/WiFi 5 Metal-Frame Smartphone Applications. Micromachines. 2024; 15(5):584. https://doi.org/10.3390/mi15050584

Chicago/Turabian Style

Li, Huiyang, Shanshan Xiao, Lefei He, Qibo Cai, and Gui Liu. 2024. "A Dual-Band 8-Antenna Array Design for 5G/WiFi 5 Metal-Frame Smartphone Applications" Micromachines 15, no. 5: 584. https://doi.org/10.3390/mi15050584

APA Style

Li, H., Xiao, S., He, L., Cai, Q., & Liu, G. (2024). A Dual-Band 8-Antenna Array Design for 5G/WiFi 5 Metal-Frame Smartphone Applications. Micromachines, 15(5), 584. https://doi.org/10.3390/mi15050584

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