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An FSS-based shared-aperture antenna for 5G/Wi-Fi communication and indoor 5G blind compensation

Published online by Cambridge University Press:  14 December 2022

Yu Lu Fan Open the ORCID record for Yu Lu Fan [Opens in a new window] ,
Xian Qi Lin  and
Xinmi Yang
Yu Lu Fan
Affiliation:
School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China The Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, P. R. China
Xian Qi Lin*
Affiliation:
School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China The Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, P. R. China
Xinmi Yang
Affiliation:
School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China The Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, P. R. China
*
Author for correspondence: Xian Qi Lin, E-mail: xqlin@uestc.edu.cn
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Abstract

In this paper, a frequency selective surface (FSS) based shared-aperture antenna is designed for 5G/Wi-Fi applications. The 5G and Wi-Fi channel are separated to achieve different polarizations and simultaneous work. The proposed antenna is of ±45°-polarization in the 5G N79 band and vertical polarization in the Wi-Fi5.8 GHz band. The antenna is vertically stacked with the N79 band antenna located above the Wi-Fi band antenna. The N79 antenna is composed of FSS units with transmissive characteristics in the Wi-Fi band, and serves as an electromagnetically transparent surface to avoid blocking the Wi-Fi antenna. A prototype of our design is fabricated, assembled and tested, and measured results show that the prototype is able to cover the entire N79 band (4.1–5.2 GHz, 23.7%) and Wi-Fi5.8 GHz band (5.73–5.89 GHz, 2.8%). Measured average gain is 8.2 and 7.8 dBi in the N79 and Wi-Fi band, respectively, and radiation efficiency is over 86 and 80%. The proposed design exhibits separated channels, tri-polarizations, high gain and compact size, which is sufficient for regular 5G/Wi-Fi applications. The antenna also achieves a relatively wide and highly consistent signal coverage in the two bands, making it suitable for 5G/Wi-Fi multi-function communication and indoor 5G blind compensation.

Keywords

Blind compensationfrequency selective surface (FSS)indoor communicationshare apertureWi-Fi5G
Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 15 , Special Issue 8: EuCAP 2022 Special Issue , October 2023 , pp. 1373 - 1381
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Copyright
© The Author(s), 2022. Published by Cambridge University Press in association with the European Microwave Association

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