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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2022-10-10
A Defected Circular Ring Dual-Band MIMO Antenna with High Isolation for 5G and IEEE 802.11 a/ac /ax
By
Jing Cai,

    Dr. Jing Cai

    College of Electrical and Electronic Engineering

    Wenzhou University

    China

    Homepage

Jianlin Huang,

    Dr. Jianlin Huang

    College of Electrical and Electronic Engineering

    Wenzhou University

    China

    Homepage

Bo Chen,

    Dr. Bo Chen

    College of Electrical and Electronic Engineering

    Wenzhou University

    China

    Homepage

Lingrong Shen,

    Dr. Lingrong Shen

    College of Electrical and Electronic Engineering

    Wenzhou University

    China

    Homepage

Tian Hong Loh,

    Dr. Tian Hong Loh

    Industry & Innovation Division

    National Physical Laboratory

    United Kingdom

    Homepage

Gui Liu

    Professor Gui Liu

    College of Physics & Electronic Information Engineering

    Wenzhou University

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 113, 237-247, 2022
doi:10.2528/PIERM22080104 | Google Scholar

Abstract
The design and analysis of a dual-band two-port multiple-input-multiple-output (MIMO) antenna with high isolation suitable for fifth-generation (5G) and wireless local area network (WLAN) applications are introduced in this paper. On the top of the substrate, the proposed antenna element is mainly composed of a defected circular ring with an L-shaped strip, an F-shaped stub, and an L-shaped stub. The bottom of the substrate comprises two rectangular defected ground structures and a neutral line with two Y-shaped stubs. The antenna isolation structure is employed to minimize the coupling between antenna elements, which is larger than 15 dB. The overall dimension of the proposed two-port MIMO antenna is approximately 45 mm × 45 mm × 1.59 mm. The measured -10 dB impedance frequency bands include 3.28-3.72 GHz and 4.44-5.92 GHz, which can cover 5G (3.3-3.6 GHz and 4.8-5 GHz) and IEEE 802.11 a/ac/ax (5.15-5.35 GHz and 5.47-5.85 GHz). The measured efficiency is greater than 60% and 55% at the lower and higher frequency bands. The measured peak gain ranges from 4 dBi to 5.8 dBi in both operating frequency bands. The proposed MIMO antenna is feasible for the 5G and WLAN applications.
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Citation
Jing Cai, Jianlin Huang, Bo Chen, Lingrong Shen, Tian Hong Loh, and Gui Liu, "A Defected Circular Ring Dual-Band MIMO Antenna with High Isolation for 5G and IEEE 802.11 a/ac /ax ," Progress In Electromagnetics Research M, Vol. 113, 237-247, 2022.
doi:10.2528/PIERM22080104
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