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Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications

The human body is an extremely challenging environment for wearable antennas due to the complex antenna-body coupling effects. In this article, a compact flexible dual-band planar meander line monopole antenna (MMA) with a truncated ground plane made of multiple layers of standard off-the-shelf mate...

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Main Authors: Ali, S.M., Sovuthy, C., Noghanian, S., Ali, Z., Abbasi, Q.H., Imran, M.A., Saeidi, T., Socheatra, S.
Format: Article
Published: MDPI AG 2021
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105200200&doi=10.3390%2fmi12050475&partnerID=40&md5=1cb1a51c5aa1ff8d6ff5f106a58942ff
http://eprints.utp.edu.my/23930/
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spelling my.utp.eprints.239302021-08-19T13:23:41Z Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications Ali, S.M. Sovuthy, C. Noghanian, S. Ali, Z. Abbasi, Q.H. Imran, M.A. Saeidi, T. Socheatra, S. The human body is an extremely challenging environment for wearable antennas due to the complex antenna-body coupling effects. In this article, a compact flexible dual-band planar meander line monopole antenna (MMA) with a truncated ground plane made of multiple layers of standard off-the-shelf materials is evaluated to validate its performance when worn by different subjects to help the designers who are shaping future complex on-/off-body wireless devices. The antenna was fabricated, and the measured results agreed well with those from the simulations. As a reference, in free-space, the antenna provided omnidirectional radiation patterns (ORP), with a wide impedance bandwidth of 1282.4 (450.5) MHz with a maximum gain of 3.03 dBi (4.85 dBi) in the lower (upper) bands. The impedance bandwidth could reach up to 688.9 MHz (500.9 MHz) and 1261.7 MHz (524.2 MHz) with the gain of 3.80 dBi (4.67 dBi) and 3.00 dBi (4.55 dBi), respectively, on the human chest and arm. The stability in results shows that this flexible antenna is sufficiently robust against the variations introduced by the human body. A maximum measured shift of 0.5 and 100 MHz in the wide impedance matching and resonance frequency was observed in both bands, respectively, while an optimal gap between the antenna and human body was maintained. This stability of the working frequency provides robustness against various conditions including bending, movement, and relatively large fabrication tolerances. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. MDPI AG 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105200200&doi=10.3390%2fmi12050475&partnerID=40&md5=1cb1a51c5aa1ff8d6ff5f106a58942ff Ali, S.M. and Sovuthy, C. and Noghanian, S. and Ali, Z. and Abbasi, Q.H. and Imran, M.A. and Saeidi, T. and Socheatra, S. (2021) Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications. Micromachines, 12 (5). http://eprints.utp.edu.my/23930/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description The human body is an extremely challenging environment for wearable antennas due to the complex antenna-body coupling effects. In this article, a compact flexible dual-band planar meander line monopole antenna (MMA) with a truncated ground plane made of multiple layers of standard off-the-shelf materials is evaluated to validate its performance when worn by different subjects to help the designers who are shaping future complex on-/off-body wireless devices. The antenna was fabricated, and the measured results agreed well with those from the simulations. As a reference, in free-space, the antenna provided omnidirectional radiation patterns (ORP), with a wide impedance bandwidth of 1282.4 (450.5) MHz with a maximum gain of 3.03 dBi (4.85 dBi) in the lower (upper) bands. The impedance bandwidth could reach up to 688.9 MHz (500.9 MHz) and 1261.7 MHz (524.2 MHz) with the gain of 3.80 dBi (4.67 dBi) and 3.00 dBi (4.55 dBi), respectively, on the human chest and arm. The stability in results shows that this flexible antenna is sufficiently robust against the variations introduced by the human body. A maximum measured shift of 0.5 and 100 MHz in the wide impedance matching and resonance frequency was observed in both bands, respectively, while an optimal gap between the antenna and human body was maintained. This stability of the working frequency provides robustness against various conditions including bending, movement, and relatively large fabrication tolerances. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Ali, S.M.
Sovuthy, C.
Noghanian, S.
Ali, Z.
Abbasi, Q.H.
Imran, M.A.
Saeidi, T.
Socheatra, S.
spellingShingle Ali, S.M.
Sovuthy, C.
Noghanian, S.
Ali, Z.
Abbasi, Q.H.
Imran, M.A.
Saeidi, T.
Socheatra, S.
Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications
author_facet Ali, S.M.
Sovuthy, C.
Noghanian, S.
Ali, Z.
Abbasi, Q.H.
Imran, M.A.
Saeidi, T.
Socheatra, S.
author_sort Ali, S.M.
title Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications
title_short Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications
title_full Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications
title_fullStr Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications
title_full_unstemmed Design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications
title_sort design and evaluation of a flexible dual-band meander line monopole antenna for on-and off-body healthcare applications
publisher MDPI AG
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105200200&doi=10.3390%2fmi12050475&partnerID=40&md5=1cb1a51c5aa1ff8d6ff5f106a58942ff
http://eprints.utp.edu.my/23930/
_version_ 1738656541871964160
score 13.211869

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