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Compact size antenna for skin implantable medical devices

Published online by Cambridge University Press:  30 November 2023

Doondi Kumar Janapala ,
Nesasudha Moses Open the ORCID record for Nesasudha Moses [Opens in a new window]  and
Jebasingh Bhagavathsingh
Doondi Kumar Janapala
Affiliation:
Department of ECE, Karunya Institute of Technology and Sciences, Coimbatore, India Department of ECE, Vishnu Institute of Technology, Bhimavaram, India
Nesasudha Moses*
Affiliation:
Department of ECE, Karunya Institute of Technology and Sciences, Coimbatore, India
Jebasingh Bhagavathsingh
Affiliation:
Department of Applied Chemistry, Karunya Institute of Technology and Sciences, Coimbatore, India
*
Corresponding author: Nesasudha Moses; Email: nesasudha@karunya.edu
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Abstract

This research work presents an implantable antenna that operates at 5.8 GHz. By using a radiator with a loop-based design, the antenna can be made smaller. Radiator is made up of three connected rectangular loops. On the substrate’s back side, an I-shaped ground plane is used. As substrate and superstrate, polydimethylsiloxane (PDMS) with dimensions of 7 mm × 5 mm × 0.3 mm is used. The conducting sections are made using copper foil that is 30 µm thick. The suggested antenna is examined by the implantable medical device using realistic human scalp phantom models and a homogenous skin box. Simulated study revealed that it operates around 5.8 GHz with a bandwidth from 5.69 to 5.92 GHz. The specific absorption rate was 0.28 and 0.26 W/kg for skin box and human scalp phantoms, respectively, at 1 mW input power across 1 g volume tissue.

Keywords

5.8 GHzbiomedicalimplantable antennaimplantable medical devices (IMDs)SAR
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , First View , pp. 1 - 10
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Copyright
© The Author(s), 2023. Published by Cambridge University Press in association with the European Microwave Association

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