Metasurface-Inspired Flexible Wearable MIMO Antenna Array for Wireless Body Area Network Applications and Biomedical Telemetry Devices

被引:0
作者
Althuwayb, Ayman A. A. [1 ]
Alibakhshikenari, Mohammad [2 ]
Virdee, Bal S. S. [3 ]
Rashid, Nasr [1 ]
Kaaniche, Khaled [1 ]
Ben Atitallah, Ahmed [1 ]
Armghan, Ammar [1 ]
Elhamrawy, Osama I. I. [1 ]
See, Chan Hwang [4 ]
Falcone, Francisco [5 ,6 ,7 ]
机构
[1] Jouf Univ, Coll Engn, Elect Engn Dept, Sakaka 72388, Al Jouf, Saudi Arabia
[2] Univ Carlos III Madrid, Dept Signal Theory & Commun, Madrid 28911, Spain
[3] London Metropolitan Univ, Ctr Commun Technol, London N7 8DB, England
[4] Edinburgh Napier Univ, Sch Engn & Built Environm, Edinburgh EH10 5DT, Scotland
[5] Publ Univ Navarre UPNA, Dept Elect Elect & Commun Engn, Pamplona 31006, Spain
[6] Univ Publ Navarra, Inst Smart Cities, Pamplona 31006, Spain
[7] Tecnol Monterrey, Sch Engn & Sci, Monterrey 64849, Mexico
关键词
On-body antennas; wearable antennas; flexible antennas; metasurface (MTS) anten-nas; electromagnetic bandgap (EBG) devices; biomedical telemetry devices; wireless body area network MIMO antenna array; TEXTILE ANTENNA; PATCH ANTENNA; SLOT ANTENNA; BAND; COMPACT; MONOPOLE; DESIGN;
D O I
10.1109/ACCESS.2022.3233388
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
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 x 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.
引用
收藏
页码:1039 / 1056
页数:18
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