Skip to main content

Adjustable Passive RFID Skin Mounted Sticker

Makarovaite, Viktorija and Gourlay, Campbell and Hillier, Aaron J.R. and Batchelor, John C. and Holder, Simon J. (2019) Adjustable Passive RFID Skin Mounted Sticker. In: 2019 IEEE 16th International Conference on Wearable and Implantable Body Sensor Networks. IEEE, New York, USA, pp. 1-4. ISBN 978-1-72810-804-9. E-ISBN 978-1-5386-7477-2. (doi:10.1109/BSN.2019.8771069) (KAR id:76316)

PDF Author's Accepted Manuscript
Language: English
Download (586kB) Preview
[img]
Preview
Official URL
https://doi.org/10.1109/BSN.2019.8771069

Abstract

Passive Radio Frequency Identification (RFID) can be limited by such aspects as size that make overcoming the capacitive loading introduced by human tissue difficult when intending to produce an efficient antenna with a high read range. It is still possible to design a small and thin RFID tag with a read range above half a meter. Here we present such a design with a diameter of less than 3 cm, By utilizing a breathable polyurethane polymer with two thicknesses, it is possible to use a single tag design for human tissue (dielectric constants ranging from a 22 to 40) with only a slight loss in antenna read range. It is more cost effective to just adjust the polyurethane thickness for a single design than to tune the antenna design itself. Volunteers one and two had read ranges above one meter while volunteer three (with permittivity of 40) caused the largest shift in antenna resonance from 865 MHz (EU band) and required an increase in polyurethane thickness from 1.1 mm to 1.5 mm. However, both designs still produced read ranges above 0.5 meters which could be further tuned with future adjustments to increase read range. This led to a passive RFID design that can be worn by most people with a simple thickness adjustment if needed.

Item Type: Book section
DOI/Identification number: 10.1109/BSN.2019.8771069
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Depositing User: Campbell Gourlay
Date Deposited: 10 Sep 2019 11:29 UTC
Last Modified: 11 Sep 2019 15:19 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/76316 (The current URI for this page, for reference purposes)
Gourlay, Campbell: https://orcid.org/0000-0002-2373-6788
Batchelor, John C.: https://orcid.org/0000-0002-5139-5765
Holder, Simon J.: https://orcid.org/0000-0001-8977-9257
  • Depositors only (login required):

Downloads

Downloads per month over past year