Performance analysis of a flexible wearable antenna with low SAR for biomedical application

Author:

Kuppusamy Ramasamy M.1,Abdulkareem Sapna B.1ORCID

Affiliation:

1. KIT KalaignarKarunanidhi Institute of Technology , Coimbatore , 641402 , India

Abstract

Abstract This article presents a conformal monopole antenna for wearable application in ISM band frequency of 2.45 GHz. The antenna has a return loss of 50.18 dB with good radiation performance. The gain of the antenna is 1.09 dBi which is improved to 3.28 dBi using a metasurface consisting of 3 × 3 array elements. The proposed metamaterial integrated antenna is fabricated on 1 mm thick flexible PDMS substrate. The metamaterial improves the gain while reducing the specific absorption rate (SAR) of the antenna. The geometry size of the metamaterial integrated antenna is 50 × 50 × 24 mm3. The loading effect of antenna by body is analyzed with a hand phantom model. Flexibility and conformability of antenna is analyzed by bending the antenna with various radii in x and y direction. Measured results of the fabricated prototype demonstrate the safety of the suggested wearable antenna for biomedical applications.

Funder

All India Council for Technical Education

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering

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