Nature-inspired spider web shaped UHF RFID reader antenna for IoT and healthcare applications

Sharif, A., kumar, R., Arshad, K., Assaleh, K., Chattha, H. T., Imran, M. A. and Abbasi, Q. H. (2023) Nature-inspired spider web shaped UHF RFID reader antenna for IoT and healthcare applications. Scientific Reports, 13(1), 14017. (doi: 10.1038/s41598-023-39825-9) (PMID:37640780) (PMCID:PMC10462659)

Abstract

This paper proposes a nature-inspired spider web-shaped ultra-high frequency (UHF) radio frequency identification (RFID) reader antenna and battery-free sensor-based system for healthcare applications. This antenna design consists of eight concentric decagons of various sizes and five straight microstrip lines.These lines are connected to the ground using 50 Ω resistors from both ends, except for one microstrip line that is reserved for connecting a feeding port. The reader antenna design features fairly strong and uniform electric and magnetic field characteristics. It also exhibits wideband characteristics, covering whole UHF RFID band (860–960 MHz) and providing a tag reading volume of 200 × 200 × 20 mm3 . Additionally, it has low gain characteristics, which are necessary for the majority of nearfield applications to prevent the misreading of other tags. Moreover, the current distribution in this design is symmetric throughout the structure, effectively resolving orientation sensitivity issues commonly encountered in low-cost linearly polarized tag antennas. The measurement results show that the reader antenna can read medicine pills tagged using low-cost passive/battery-free RFID tags, tagged expensive jewelry, intervenes solution, and blood bags positioned in various orientations. As a result, the proposed reader antenna-based system is a strong contender for near-field RFID, healthcare, and IoT applications.

• Item Type: Articles
• Additional Information: This paper is supported by Ajman University Internal Research Grant No. 2022-IRG-ENIT-26.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Imran, Professor Muhammad and Abbasi, Professor Qammer
• Authors: Sharif, A., kumar, R., Arshad, K., Assaleh, K., Chattha, H. T., Imran, M. A., and Abbasi, Q. H.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Scientific Reports
• Publisher: Nature Research
• ISSN: 2045-2322
• ISSN (Online): 2045-2322
• Published Online: 28 August 2023
• Copyright Holders: Copyright © The Author(s) 2023
• First Published: First published in Scientific Reports 13(1):14017
• Publisher Policy: Reproduced under a Creative Commons license