Effect of material properties on a subdermal UHF RFID antenna

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Publication Type pre-print
School or College College of Engineering
Department Electrical Engineering
Creator Chrysler, Andrew
Other Author Furse, Cynthia; Hall, Kaitlin; Chung, Youchung
Title Effect of material properties on a subdermal UHF RFID antenna
Date 2018
Description This paper explores a subdermal RFID antenna at 918 MHz. The antenna, made from ink encapsulated in thin sheets of biocompatible PET, is designed to be implanted in the fat layer just below the skin, with the muscle acting as a lossy ground plane. The antenna is a patch that uses a T-slot for matching. Three materials are tested - aluminum tape, ELCOAT ink, and inkjet printing. The effect of antenna conductivity and the properties of the fat/skin and muscle layers are explored. The ELCOAT ink performs very similar to the aluminum, but the inkjet printing creates a very thin layer that is subject to skin depth effects. This RFID antenna provides a good proxy for next generation work on subdermal antennas. It demonstrates that the fat layer can sufficiently insulate the antenna to enable subdermal applications, and that the muscle acts like a sufficient ground plane, but without the challenges of a PEC ground plane very near the antenna. The antenna could also be used on the skin surface if the impedance is properly tuned.
Type Text
Publisher University of utah
Journal Title IEEE Journal of RFID
Volume 1
Issue 4
First Page 260
Last Page 266
Subject Implantable Antennas; Subdermal antennas; Tattoo Antennas; Radio Frequency Identification (RFID); Conductivity
Language eng
Rights Management (c) Andrew Chrysler, Cynthia Furse, Kaitlin Hall, Youchung Chung
Format Medium application/pdf
ARK ark:/87278/s62k0nwh
Setname ir_uspace
Date Created 2018-12-13
Date Modified 2021-05-06
ID 1389303
Reference URL https://collections.lib.utah.edu/ark:/87278/s62k0nwh
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