Wideband Loop Antenna With Split-Ring Resonators for Wireless Medical Telemetry

Jiang, Zhenzhen ORCID: 0000-0003-3306-883X, Wang, Zhao, Leach, Mark, Lim, Eng Gee ORCID: 0000-0003-0199-7386, Wang, Jingchen, Pei, Rui ORCID: 0000-0003-0829-8334 and Huang, Yi ORCID: 0000-0001-7774-1024 (2019) Wideband Loop Antenna With Split-Ring Resonators for Wireless Medical Telemetry. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 18 (7). pp. 1415-1419.

Text Author_version.pdf - Author Accepted Manuscript Download (1MB) | Preview

Abstract

This letter presents a wideband flexible loop antenna with split-ring resonators (SRRs) for use in wireless medical telemetry. This design covers the entire MedRadio band (401-406 MHz) and four Industrial, Scientific, and Medical (ISM) bands (433.1-434.8, 868.0-868.8, and 902.8-928.0 MHz and 2.4-2.48 GHz). The SRRs improve the loop antenna return loss and reduce the power absorbed inside the human body over the multiband frequency ranges; they also result in increased radiation efficiency, gain, and transmission coefficient. A human body model has been used to study and optimize the antenna performance in a realistic environment and shows a reduction in specific absorption rate when the SRRs are used. Measurements are conducted in a tissue-simulating liquid phantom and show a good agreement with the simulations. This novel antenna could be used for a range of implantable applications such as wireless data transmission and wireless power transfer.

Item Type:	Article
Uncontrolled Keywords:	Biomedical applications, implantable antennas, split-ring resonators (SRRs), wideband antennas
Depositing User:	Symplectic Admin
Date Deposited:	06 Aug 2019 10:35
Last Modified:	19 Jan 2023 00:36
DOI:	10.1109/LAWP.2019.2918501
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3051093