Reconfigurable MIMO Antenna for Integrated-Metal-Rimmed Smartphone Applications

Zi-Qiang Xu; Yang-Tao Sun; Qiang-Qiang Zhou; Yong-Ling Ban; Yuan-Xun Li; Simon S. Ang

doi:10.1109/ACCESS.2017.2757949

IEEE Access (Jan 2017)

Reconfigurable MIMO Antenna for Integrated-Metal-Rimmed Smartphone Applications

Zi-Qiang Xu,
Yang-Tao Sun,
Qiang-Qiang Zhou,
Yong-Ling Ban,
Yuan-Xun Li,
Simon S. Ang

Affiliations

Zi-Qiang Xu: ORCiD; School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yang-Tao Sun: School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Qiang-Qiang Zhou: School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yong-Ling Ban: ORCiD; School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yuan-Xun Li: School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Simon S. Ang: High Density Electronics Center, University of Arkansas, Fayetteville, AR, USA

DOI: https://doi.org/10.1109/ACCESS.2017.2757949
Journal volume & issue: Vol. 5
pp. 21223 – 21228

Abstract

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A reconfigurable full-metal-rimmed MIMO antenna is designed and proposed for WWAN/LTE smartphones. This antenna consists of two centro-symmetrically distributed antenna elements and radiation structures using the unbroken metal rim in plastic casing. It can achieve a good isolation of more than 17dB over the entire operation bands. Each antenna element occupies a small ground area of 30 × 6 mm2. The U-shaped feeding line provides a coupled feed and the antenna element generates four typical loop resonant modes. Using reconfigurable technique to combine these four resonant modes, this hepta-band MIMO antenna can satisfactory cover lower bands of GSM850/900 and higher bands of GSM1800/1900/ UMTS/LTE2300/2500. A prototype MIMO antenna was fabricated and the measured results of S-parameters, antenna efficiency and gain, envelope correlation coefficient, mean effective gain, and channel capacity are reported.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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