A Compact Dual-Band MIMO Antenna for Sub-6 GHz 5G Terminals

In this paper, a dual-band multiple-input-multiple-output (MIMO) antenna is proposed for fifth-generation (5G) wireless communication terminals. The measured -10 dB impedance bandwidths of 380 MHz (3.34–3.72 GHz) and 560 MHz (4.57–5.13 GHz) can cover the 3.4–3.6 GHz and 4.8–5 GHz 5G bands. The singl...

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Bibliographic Details
Published inJournal of Electromagnetic Engineering and Science Vol. 22; no. 5; pp. 599 - 607
Main Authors Dong, Guiting, Huang, Jianlin, Lin, Simin, Chen, Zhizhou, Liu, Gui
Format Journal Article
LanguageEnglish
Published 한국전자파학회JEES 01.09.2022
The Korean Institute of Electromagnetic Engineering and Science
Subjects
dual band
fifth-generation (5g)
high-isolation
mimo antenna
planar antenna
Dual Band
High-Isolation
Planar Antenna
Fifth-Generation (5G)
MIMO Antenna
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Summary:In this paper, a dual-band multiple-input-multiple-output (MIMO) antenna is proposed for fifth-generation (5G) wireless communication terminals. The measured -10 dB impedance bandwidths of 380 MHz (3.34–3.72 GHz) and 560 MHz (4.57–5.13 GHz) can cover the 3.4–3.6 GHz and 4.8–5 GHz 5G bands. The single antenna element of this proposed MIMO is composed of an F-shaped feed strip and an inverted L-shaped radiation strip. A defected ground structure is employed to obtain a good isolation performance, whereby the measured isolation between the antenna elements is observed to be larger than 23 dB. The measured total radiation efficiencies at 3.5 GHz and 4.9 GHz are 76.65% and 71.93%, respectively. Besides, the calculated envelope correlation coefficients (ECC) are less than 0.00125 and 0.01164 at the low-frequency and high-frequency bands, respectively. Furthermore, the specific absorption ratio (SAR) analysis of the antenna verifies that it qualifies for 5G terminals.
ISSN:2671-7255
2671-7263
DOI:10.26866/jees.2022.5.r.128