Ayman A. Althuwayb
Metasurface-Inspired Flexible Wearable MIMO Antenna Array for Wireless Body Area Network Applications and Biomedical Telemetry Devices
Althuwayb, Ayman A.; Alibakhshikenari, Mohammad; Virdee, Bal S.; Rashid, Nasr; Kaaniche, Khaled; Ben Atitallah, Ahmed; Armghan, Ammar; Elhamrawy, Osama I.; See, Chan Hwang; Falcone, Francisco
Authors
Mohammad Alibakhshikenari
Bal S. Virdee
Nasr Rashid
Khaled Kaaniche
Ahmed Ben Atitallah
Ammar Armghan
Osama I. Elhamrawy
Prof Chan Hwang See C.See@napier.ac.uk
Professor
Francisco Falcone
Abstract
This article presents a sub-6GHz ISM-band flexible wearable MIMO antenna array for wireless body area networks (WBANs) and biomedical telemetry devices. The array is based on metasurface inspired technology. The antenna array consists of 2×2 matrix of triangular-shaped radiation elements that were realized on 0.8 mm thick Rogers RT/duroid 5880 substrate. Radiation characteristics of the array are enhanced by isolating the surface current interaction between the individual radiators in the array. This is achieved by inserting an electromagnetic bandgap (EBG) decoupling structure between the radiating elements. The radiating elements were transformed into a metasurface by etching sub-wavelength slots inside them. The periodic arrangement of slots acts like resonant scatterers that manipulate the electromagnetic response of the surface. Results confirm that by employing the decoupling structure and sub-wavelength slots the isolation between the radiators is significantly improved (>34.8 dB). Moreover, there is an improvement in the array’s fractional bandwidth, gain and the radiation efficiency. The optimized array design for operation over 5.0-6.6 GHz has an average gain and efficiency of 10 dBi and 83%, respectively. Results show that the array’s performance is not greatly affected by a certain amount of bending. In fact, the antenna maintains a gain between 8.65-10.5 dBi and the efficiency between 77-83%. The proposed MIMO antenna array is relatively compact, can be easily fabricated on one side of a dielectric material, allows easy integration with RF circuitry, is robust, and maintains its characteristics with some bending. These features make it suitable for various wearable applications and biomedical telemetry devices.
Citation
Althuwayb, A. A., Alibakhshikenari, M., Virdee, B. S., Rashid, N., Kaaniche, K., Ben Atitallah, A., Armghan, A., Elhamrawy, O. I., See, C. H., & Falcone, F. (2022). Metasurface-Inspired Flexible Wearable MIMO Antenna Array for Wireless Body Area Network Applications and Biomedical Telemetry Devices. IEEE Access, 11, 1039-1056. https://doi.org/10.1109/ACCESS.2022.3233388
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 28, 2022 |
Online Publication Date | Dec 30, 2022 |
Publication Date | 2022 |
Deposit Date | Dec 29, 2022 |
Publicly Available Date | Jan 4, 2023 |
Journal | IEEE Access |
Electronic ISSN | 2169-3536 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Peer Reviewed | Peer Reviewed |
Volume | 11 |
Pages | 1039-1056 |
DOI | https://doi.org/10.1109/ACCESS.2022.3233388 |
Keywords | On-body antennas, wearable antennas, flexible antennas, metasurface (MTS) antennas , electromagnetic bandgap (EBG) devices, biomedical telemetry devices, wireless body area network (WBAN), MIMO antenna array |
Public URL | http://researchrepository.napier.ac.uk/Output/2994214 |
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Metasurface-Inspired Flexible Wearable MIMO Antenna Array For Wireless Body Area Network Applications And Biomedical Telemetry Devices
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