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Design and characterization of a dual-band miniaturized circular antenna for deep in body biomedical wireless applications

Published online by Cambridge University Press:  19 March 2020

Shuoliang Ding*
Affiliation:
Group of Electrical Engineering – Paris, UMR 8507 CNRS, CentraleSupelec, Université Paris-Sud, Sorbonne Université, Gif-sur-Yvette, France
Stavros Koulouridis
Affiliation:
Electrical and Computer Engineering Department, University of Patras, Patras, Greece
Lionel Pichon
Affiliation:
Group of Electrical Engineering – Paris, UMR 8507 CNRS, CentraleSupelec, Université Paris-Sud, Sorbonne Université, Gif-sur-Yvette, France
*
Author for correspondence: Shuoliang Ding, E-mail: [email protected]

Abstract

In this paper, a novel miniaturized implantable circular antenna is presented. It supports both wireless information communication and wireless energy transmission at the Medical Device Radiocommunication band (MedRadio 402–405 MHz) and the industrial, scientific, and medical bands (ISM 902.8–928 MHz). The antenna is circular to avoid sharp edges while miniaturization is achieved by adding two circular slots to the patch. The main scenario includes embedding into the muscle layer of a cylindrical three-layer model of a human arm for which several parameters are analyzed (resonance, radiation pattern, and specific absorption rate). Power transmission efficiency and interaction distance limits to ensure connections are also evaluated. Finally, the design is validated by an experimental measurement in an anechoic chamber, and some new improvements are proposed.

Type
Research Paper
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2020

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