Journal article
Efficiency measurement of the flexible on-body antenna at varying levels of stretch in a reverberation chamber
IET microwaves, antennas & propagation, v 14(3)
26 Feb 2020
Abstract
Flexible antennas have the potential to transform wearable and fabric-based wireless sensing technologies. The antenna discussed in this study is part of a sensing system that uses the back-scattered power level as the decision metric. For a good wireless sensor, it is necessary to offer a feasible read range and maintain good distinctions in the back-scattered power levels between the different states (i.e. level of stretch) of the antenna. Moreover, effects due to human body proximity should be minimised. For these reasons, the radiation efficiency is a crucial parameter to investigate. This study presents the radiation efficiency measurement of the proposed flexible knitted ‘Bellyband’ antenna at two different levels of stretch in a reverberation chamber. This work validates the reverberation chamber measurements through comparison with simulations and anechoic chamber measurements at 900 MHz. Moreover, this work demonstrates how the approach can be used to quantify bellyband antenna efficiency in the vicinity of a human body. Finally, the efficiency results were used to predict the read range of Bellyband radio frequency identification technology.
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Details
- Title
- Efficiency measurement of the flexible on-body antenna at varying levels of stretch in a reverberation chamber
- Creators
- Md Abu Saleh Tajin - 1Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104, USAOday Bshara - 1Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104, USAYuqiao Liu - 1Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104, USAAriana Levitt - 2Materials Science and Engineering Department, Drexel University, Philadelphia, PA 19104, USAGenevieve Dion - 3Design Department, Drexel University, Philadelphia, PA 19104, USAKapil R Dandekar - 1Department of Electrical and Computer Engineering, Drexel University, Philadelphia, PA 19104, USA
- Publication Details
- IET microwaves, antennas & propagation, v 14(3)
- Publisher
- The Institution of Engineering and Technology
- Grant note
- CNS-1816387 / National Science Foundation U01EB023035 / National Institutes of Health
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering; Fashion Design
- Web of Science ID
- WOS:000515800200003
- Scopus ID
- 2-s2.0-85079791403
- Other Identifier
- 991014969760804721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Electrical & Electronic
- Telecommunications