University of Oulu

K. Zhang, P. J. Soh and S. Yan, "A Wideband Circularly Polarized Wearable Antenna Based on Metasurface for WBAN Applications," 2022 IEEE 22nd International Conference on Communication Technology (ICCT), Nanjing, China, 2022, pp. 698-701, doi: 10.1109/ICCT56141.2022.10072592

A wideband circularly polarized wearable antenna based on metasurface for WBAN applications

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Author: Zhang, Kai1; Soh, Ping Jack2; Yan, Sen1
Organizations: 1School of Information and Communications Engineering Xi'an Jiaotong University, Xi'an, China
2Centre for Wireless Communications University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2022
Publish Date: 2023-04-14


This conference paper presents a circularly polarized wearable antenna array based on metasurface with wideband for wireless body area network (WBAN). The antenna array consists of four metasurface antennas, and each antenna has a sub array including 2 x 2 metasurface elements. A ring-shaped feeding structure with four arms is employed in this array. Using this structure, a quasi-90° phase delay is generated between each adjacent arm, and thus the antenna array can radiate a circularly polarized pattern. For the wearable antenna array, the simulation −10 dB impedance bandwidth is from 3 GHz to 5.92 GHz with 65.5% relative bandwidth. And the 3 dB axial ratio bandwidth is from 3 GHz to 5.45 GHz with 58% relative bandwidth. The whole size of the antenna array is 1.59λ×1.59λ×0.09λ (106×106×6 mm³) at 4.5 GHz, and the maximum gain is 8.3 dBi. Eventually, the Specific absorption rate (SAR) at different frequency of proposed antenna is assessed on the body phantom, and the values are satisfied the FCC standards. This flexible antenna array is an excellent candidate for WBAN and 5G applications.

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Series: International Conference on Communication Technology
ISSN: 2576-7844
ISSN-E: 2576-7828
ISSN-L: 2576-7828
ISBN: 978-1-6654-7067-4
ISBN Print: 978-1-6654-7068-1
Pages: 698 - 701
DOI: 10.1109/icct56141.2022.10072592
Host publication: 2022 IEEE 22nd International Conference on Communication Technology (ICCT)
Conference: IEEE International Conference on Communication Technology
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by the National Natural Science Foundation, China (Grant No. 61901351) and the Key Research and Development Program of Shaanxi Province, China (No. 2022GY-114).
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