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A compact 12 × 12 MIMO loop antenna for 5G mobile phone applications

Published online by Cambridge University Press:  20 June 2023

Ji-Peng Jhuang Open the ORCID record for Ji-Peng Jhuang [Opens in a new window]  and
Hsin-Lung Su Open the ORCID record for Hsin-Lung Su [Opens in a new window]
Ji-Peng Jhuang
Affiliation:
Department of Computer Science and Information Engineering, National Pingtung University, Pingtung, Taiwan
Hsin-Lung Su*
Affiliation:
Department of Computer and Communication, National Pingtung University, Pingtung, Taiwan
*
Corresponding author: Hsin-Lung Su; Email: [email protected]
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Abstract

A compact 12-element multiple-input multiple-output loop antenna array for a fifth-generation (5G) mobile phone is proposed. The operating band for the proposed antenna covers the long-term evolution 42 band, which spans a frequency range of 3.4–3.6 GHz. The size of the single antenna element is 5.85 × 4.9 mm2 (0.068λ0 × 0.057λ0), and 12 of these elements are positioned along two side edges of the mobile phone. This antenna is suitable for high screen-to-body ratio devices. The measured 6-dB impedance bandwidth is from 3.4 to 3.73 GHz. The measured total efficiency of the proposed antenna is 39–56% and the peak gain is 0–3.2 dBi. The transmission coefficient is less than −12 dB, the envelope correlation coefficient is less than 0.42, and the channel capacity is 45–50 bps/Hz.

Keywords

5G antennascompact antennasloop antennasMIMO antenna arraymobile phone antennas
Type
AntennaDesign, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 16 , Special Issue 1: MMS 2022 Special Issue , February 2024 , pp. 151 - 161
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Copyright
© The Author(s), 2023. Published by Cambridge University Press in association with the European Microwave Association

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