Inkjet printed epidermal RFID tags

Oyeka, Dumtoochukwu; Ziai, Mohamed A.; Batchelor, John C.; Sanchez-Romaguera, Veronica; Yeates, Stephen G.; Wünscher, Sebastian; Schubert, Ulrich S.

doi:10.1109/eucap.2014.6902042

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…The tag, Figure 1 , presented in [ 15 ] was used for this study. It resonates at the european union (EU) ultra high frequency (UHF) RFID Frequency band of 865 to 868 MHz.…”

Section: Methodsmentioning

confidence: 99%

“…This challenge has led to some creative means of reducing the volume of ink (hence cost reduction) used in inkjet printing while maintaining good tag read range. Some popular techniques used to reduce ink usage per tag considered in this work include trimming off of low current density areas of the tag [ 13 ], selective deposition of ink in high current concentration areas of the RFID tag and use of meshed designs [ 14 ]. These are all geared towards ensuring favourable competition between inkjet printing and other conventional fabrication techniques.…”

Section: Introductionmentioning

confidence: 99%

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A comparison of conductive ink usage optimization techniques used in fabrication of epidermal UHF radio frequency identification tags for medical and sensing applications

Oyeka,

Batchelor,

Saunders

2023

Healthcare Tech Letters

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The aim of this work is to assess the performance of various inkjet printing techniques. These techniques are aimed at optimizing the volume of conductive ink used in the fabrication of inkjet printed Radio Frequency Identification tags. It is also possible that they can be used in fabricating other electronic and electromagnetic devices and structures. Three ink optimization approaches were examined viz. gridded (meshed) designs, conductive area trimming and selective ink deposition. The volume of conductive ink utilized in tag fabrication and the measured on‐body (forearm) read range of the tag were used to develop a figure of merit which determined the best printing approach. Although the longest read range was obtained from the tag with 48% conductive area trimming (Trim 1), the best figure of merit, that is, the tag with the best balance between measured read range and utilized conductive ink, was obtained from the tag that had its surface area trimmed by 65% (Trim 2). It is however suggested that optimum use of conductive ink would be achieved with a combination of 65% surface area trimming and selective ink deposition technique.

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“…The tag, Figure 1 , presented in [ 15 ] was used for this study. It resonates at the european union (EU) ultra high frequency (UHF) RFID Frequency band of 865 to 868 MHz.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%