Compact circular polarized CPW antenna for WLAN and biomedical applications

Navneet Sharma; Anubhav Kumar; Asok De; Rakesh K. Jain

doi:10.1515/freq-2021-0129

Article

Compact circular polarized CPW antenna for WLAN and biomedical applications

Navneet Sharma , Anubhav Kumar , Asok De and Rakesh K. Jain

Published/Copyright: November 10, 2021

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From the journal Frequenz Volume 76 Issue 3-4

Abstract

A compact, circularly polarized, CPW-fed antenna is proposed for wearable applications in ISM Band (5.8 GHz). The antenna is based on DGS, where the ground plane is responsible for impedance matching. The 10 dB impedance of the proposed antenna varies from 5.39 GHz to 5.94 GHz. The circular stub introduced in the ground plane mitigates the surface current and enriches the 3 dB axial ratio from 5.73 GHz to 5.92 GHz. Proposed antenna exhibits the LHCP and RHCP pattern of circular polarization, the antenna can effectively work for biomedical and wearable applications. The antenna is analyzed on the skin phantom model and the SAR value obtained is 1.218 W/kg, which is below the maximum permissible level. The proposed antenna is also used for the detection of breast tumors.

Keywords: co-planar waveguide (CPW); defected ground structure (DGS); skin phantom; specific absorption rate (SAR)

Corresponding author: Navneet Sharma, Department of Electronics and Communication Engineering, Shobhit Institute of Engineering and Technology (Deemed to-be University), Meerut, U.P., India, E-mail: navneet1979@gmail.com

Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-05-23

Accepted: 2021-10-24

Published Online: 2021-11-10

Published in Print: 2022-04-26

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Articles in the same Issue

https://doi.org/10.1515/freq-2021-0129

Keywords for this article

co-planar waveguide (CPW); defected ground structure (DGS); skin phantom; specific absorption rate (SAR)