Highly Integrated and Ultra-Compact Rectenna with Wireless Powering for Implantable Vascular Devices

Zhang, J., Wagih, M. , Hoare, D., Mirzai, N., Mercer, J. , Das, R. and Heidari, H. (2023) Highly Integrated and Ultra-Compact Rectenna with Wireless Powering for Implantable Vascular Devices. In: 21st IEEE Interregional NEWCAS Conference (IEEE NEWCAS 2023), Edinburgh, UK, 26-28 June 2023, ISBN 9798350300246 (doi: 10.1109/NEWCAS57931.2023.10198083)

Abstract

This paper presents a highly integrated and ultracompact implantable rectenna for wirelessly powering implantable vascular devices at 1.4 GHz. The proposed implantable rectenna occupies dimensions of 7× 7× 0.635mm3 and is encapsulated by a biocompatible polydimethylsiloxane (PDMS) package with an overall size of 8× 8× 1.635mm3. The miniaturized implantable antenna is achieved by embedding meandered slots on the radiating patch and open-end ground slot. In addition, a single optimized matching inductor is designed for the matching circuit between the antenna and the rectifier. The rectifier is directly integrated into the radiating patch layer of the antenna using a probe feed. The rectifying circuit, utilizing a single-stage voltage doubler topology, efficiently converts radio frequency (RF) power received by the implantable antenna into proper direct current (DC) power to drive the implantable vascular devices. The integrated matching and rectifying circuit are miniaturized to 4. 87× 2.05× 0.635mm3 and exhibits a maximum simulated conversion efficiency of 67.9% with a load resistance of 3 kΩ at an input power of 7.5 dBm.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Mirzai, Mr Nosrat and Zhang, Jungang and Wagih, Dr Mahmoud and Das, Dr Rupam and Heidari, Professor Hadi and Hoare, Dr Daniel and Mercer, Dr John
• Authors: Zhang, J., Wagih, M., Hoare, D., Mirzai, N., Mercer, J., Das, R., 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; College of Science and Engineering > School of Engineering; College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 2474-9672
• ISBN: 9798350300246
• Copyright Holders: Copyright © 2023 IEEE
• First Published: First published in 2023 21st IEEE Interregional NEWCAS Conference (NEWCAS)
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

Related URLs

• Organisation