relation: https://khub.utp.edu.my/scholars/16993/
title: Design and Evaluation of a Button Sensor Antenna for On-Body Monitoring Activity in Healthcare Applications
creator: Ali, S.M.
creator: Sovuthy, C.
creator: Noghanian, S.
creator: Saeidi, T.
creator: Majeed, M.F.
creator: Hussain, A.
creator: Masood, F.
creator: Khan, S.M.
creator: Shah, S.A.
creator: Abbasi, Q.H.
description: A button sensor antenna for on-body monitoring in wireless body area network (WBAN) systems is presented. Due to the close coupling between the sensor antenna and the human body, it is highly challenging to design sensor antenna devices. In this paper, a mechanically robust system is proposed that integrates a dual-band button antenna with a wireless sensor module designed on a printed circuit board (PCB). The system features a small footprint and has good radiation characteristics and efficiency. This was fabricated, and the measured and simulated results are in good agreement. The design offers a wide range of omnidirectional radiation patterns in free space, with a reflection coefficient (S11) of �29.30 (�30.97) dB, a maximum gain of 1.75 (5.65) dBi, and radiation efficiency of 71.91 (92.51) in the lower and upper bands, respectively. S11 reaches �23.07 (�27.07) dB and �30.76 (�31.12) dB, respectively, with a gain of 2.09 (6.70) dBi and 2.16 (5.67) dBi, and radiation efficiency of 65.12 (81.63) and 75.00 (85.00), when located on the body for the lower and upper bands, respectively. The performance is minimally affected by bending, movement, and fabrication tolerances. The specific absorption rate (SAR) values are below the regulatory limitations for the spatial average over 1 g (1.6 W/Kg) and 10 g of tissues (2.0 W/Kg). For both indoor and outdoor conditions, experimental results of the range tests confirm the coverage of up to 40 m. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
publisher: MDPI
date: 2022
type: Article
type: PeerReviewed
identifier:   Ali, S.M. and Sovuthy, C. and Noghanian, S. and Saeidi, T. and Majeed, M.F. and Hussain, A. and Masood, F. and Khan, S.M. and Shah, S.A. and Abbasi, Q.H.  (2022) Design and Evaluation of a Button Sensor Antenna for On-Body Monitoring Activity in Healthcare Applications.  Micromachines, 13 (3).   ISSN 2072666X     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85127429417&doi=10.3390%2fmi13030475&partnerID=40&md5=3492933f90e6ed0664bae4c28490b723
relation: 10.3390/mi13030475
identifier: 10.3390/mi13030475