Compact SIW Fed Dual-Port Single Element Annular Slot MIMO Antenna for 5G mmWave Applications

In this article, a compact dual-port single element MIMO antenna is presented for millimeter wave (mmWave) 5G wireless applications. The presented antenna design consists of an annular ring slot that is fed by a Substrate Integrated Waveguide (SIW) at the two opposite sides of the substrate. The ant...

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Bibliographic Details
Published in:IEEE access 2021, Vol.9, p.91995-92002
Main Authors: Usman, Muhammad, Kobal, Enis, Nasir, Jamal, Zhu, Yuanwei, Yu, Chao, Zhu, Anding
Format: Article
Language:English
Subjects:
5G mobile communication
Antenna design
Antenna feeds
Antenna measurements
Antennas
Correlation coefficients
Gain measurement
Millimeter wave
Millimeter waves
MIMO
MIMO communication
Slot antennas
substrate integrated waveguide (SIW)
Substrate integrated waveguides
Transmission line measurements
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Summary:In this article, a compact dual-port single element MIMO antenna is presented for millimeter wave (mmWave) 5G wireless applications. The presented antenna design consists of an annular ring slot that is fed by a Substrate Integrated Waveguide (SIW) at the two opposite sides of the substrate. The antenna resonates at 28GHz and its 10dB impedance bandwidth is 400MHz. The isolation between the ports is reduced by introducing additional annular slot that acts as a cavity which results in an isolation better than 20dB at 28GHz. The measured gain of both ports are 6.9 dBi which is the highest gain per unit element at 28GHz in the literature. The measured diversity gain and envelope correlation coefficient are 9.98dB and 0.065, respectively, at the band of interest. The measured and simulated results are in good agreement.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3091835