A novel SAR reduction technique for implantable antenna using conformal absorber metasurface

Copyright © 2022 Das, Mitra, Chezhian, Mandal and Augustine..

In this paper, a conformal absorber metasurface has been designed and used for reducing the specific absorption rate (SAR) of an implantable antenna. SAR reduction of implantable antennas is one of the significant design aspects to be considered for their use in modern-day healthcare applications. The introduction of the absorber metasurface restricts the back radiation of the antenna to control the SAR value. This technique decreases the maximum SAR value by 24% and also reduces the average SAR distribution significantly without affecting the desired antenna gain. A reduction in SAR value indicates the decrease in radiation absorption by human tissue, and thus, decreases the possibility of health hazards due to EM radiation. Later, this antenna-absorber system is designed as a capsule module for increased mobility and less-invasiveness. The redundancy of invasive surgery increases acceptance of the capsule module designs of implantable antennas and devices for various biomedical usages. In vitro testing of the fabricated prototype has been carried out inside a multi-layer porcine slab to verify the effectiveness of this unique SAR reduction technique.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:4

Enthalten in:

Frontiers in medical technology - 4(2022) vom: 29., Seite 924433

Sprache:

Englisch

Beteiligte Personen:

Das, Soumyadeep [VerfasserIn]
Mitra, Debasis [VerfasserIn]
Chezhian, Arvind S [VerfasserIn]
Mandal, Bappaditya [VerfasserIn]
Augustine, Robin [VerfasserIn]

Links:

Volltext

Themen:

Absorber metasurface
Biomedical application
Capsule antenna module
Conformal metasurface
Journal Article
SAR reduction

Anmerkungen:

Date Revised 12.09.2022

published: Electronic-eCollection

Citation Status PubMed-not-MEDLINE

doi:

10.3389/fmedt.2022.924433

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM345991133