Spider Web Shaped Near-field UHF RFID Reader Antenna for Healthcare and IoT Applications

Sharif, A., Ouyang, J., Arshad, K., Imran, M. A. and Abbasi, Q. H. (2021) Spider Web Shaped Near-field UHF RFID Reader Antenna for Healthcare and IoT Applications. In: 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, Montréal, QC, Canada, 05-10 Jul 2020, pp. 1535-1536. ISBN 9781728166704 (doi: 10.1109/IEEECONF35879.2020.9330372)

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Abstract

This paper presents a spider web-shaped antenna for near-field UHF RFID applications. The proposed design consists of concentric decagons, and open-ended microstrip lines etched on the circular substrate. The proposed design features a uniform and fairly strong electric field distribution in the nearfield region. In addition, this antenna exhibits impedance matching ranging from 902 MHz - 925 MHz and further poses low gain characteristics, that is required for most of the nearfield application in order to avoid misreading of other tags. Moreover, this design provides symmetric current distribution throughout the structure, thereby solves orientation sensitivity problems of low-cost linearly polarised tag antennas. The measurement results demonstrate tag can successfully read expensive jewellery items, tagged pills and tag placed in different orientations. Therefore, the proposed reader antenna is a good candidate for near field RFID, health care and IoT Applications.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad and Abbasi, Professor Qammer
Authors: Sharif, A., Ouyang, J., Arshad, K., Imran, M. A., and Abbasi, Q. H.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
ISSN:1947-1491
ISBN:9781728166704
Copyright Holders:Copyright © 2020 IEEE
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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