Zhang, J., Das, R. , Hoare, D., Wang, H., Ofiare, A., Mirzai, N., Mercer, J. and Heidari, H. (2023) A compact dual-band implantable antenna for wireless biotelemetry in arteriovenous grafts. IEEE Transactions on Antennas and Propagation, 71(6), pp. 4759-4771. (doi: 10.1109/TAP.2023.3266786)
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Abstract
Arteriovenous grafts (AVGs) are indispensable life-saving implants for chronic kidney disease (CKD) patients undergoing hemodialysis. However, AVGs will often fail due to postoperative complications such as cellular accumulation termed restenosis, blood clots, and infections, which are dominant causes of morbidity and mortality. A new generation of hemodialysis implants equipped with biosensors and multi-band antennas for wireless power and telemetry systems that can detect specific pathological parameters and report AVGs’ patency would be transformative for CKD. Our study proposes a compact dual-band implantable antenna for hemodialysis monitoring applications. It operates in 1.4 GHz and 2.45 GHz for wireless power transfer and biotelemetry purposes. The miniaturized antenna with a current size of 5 × 5 × 0.635 mm 3 exhibits wide bandwidth (300 MHz at 1.4 GHz band and 380 MHz at 2.45 GHz band), along with good impedance matching at two resonance frequencies. In addition, simulations are performed separately in a three-layer homogenous phantom and a realistic human body model. Measurements of the proposed antenna are evaluated in minced pork. The measured results of the fabricated antenna prototype are closely harmonized with the simulation ones, and the effect of different proportions of fat tissue in pork mince was analyzed, to verify the sensitivity of the antenna to the contacting medium. The specific absorption rate (SAR) and link budget calculation are also analyzed. Finally, the wireless biotelemetry function of the proposed antenna is realized and visualized by adopting a pair of nRF24L01 wireless transceivers, and sustainable and stable wireless data transmission characteristics are shown at a high data rate of 2 Mbps with up to 20 cm transmission distance.
| Item Type: | Articles |
|---|---|
| Additional Information: | This paper is supported by UKRI Horizon Europe Guarantee HORIZON-EIC-PATHFINDERCHALLENGES CROSSBRAIN (GA n.101070908), Wellcome Early Concept Development under 219390/Z/19/Z, and EU H2020 MSCA-IF WiseCure (GA n.893822). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Zhang, Jungang and Das, Dr Rupam and Ofiare, Dr Afesomeh and Hoare, Dr Daniel and Wang, Mr Huxi and Mirzai, Mr Nosrat and Heidari, Professor Hadi and Mercer, Dr John |
| Authors: | Zhang, J., Das, R., Hoare, D., Wang, H., Ofiare, A., Mirzai, N., Mercer, J., and Heidari, H. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Cardiovascular & Metabolic Health College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing College of Science and Engineering > School of Engineering College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | IEEE Transactions on Antennas and Propagation |
| Publisher: | IEEE |
| ISSN: | 0018-926X |
| ISSN (Online): | 1558-2221 |
| Published Online: | 18 April 2023 |
| Copyright Holders: | Copyright © 2023 The Authors |
| First Published: | First published in IEEE Transactions on Antennas and Propagation 71(6):4759-4771 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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