Design of SRR loaded octagonal slot CPW fed wearable antenna for EEG monitoring applications

Abstract

A novel SRR loaded rectangular, octagonal slot and octagonal slot with octagonal patch shape coplanar wave guide fed with truncated ground structure configured wearable antenna is exceptionally essential part for wearable device module for electroencephalogram (EEG) and healthcare monitoring. This antenna designed to fine-tune at resonating frequency 2.45GHz is one of the on-body narrow band unlicensed communication band. This is SRR loaded antenna; hence it has high gain, bandwidth, flexible frequency tune, low-power consumption, less size and weight, low profile and conformal to on body-for high data rate wireless surface body communication. The proposed model using a buffer layer and SRR loaded structure, which is located in between radiation element and skin layer, therefore the designed antenna has enabled to have high gain and more isolation from skin layer. The simulated results for the magnitude of reflection coefficients are −25.4dB at 2.40GHz [a] and −36.5dB at 2.45GHz [b], −22.49dB at 2.43GHz [c], for SRR loaded proposed antennas. These values are more suitable for standard ISM communication.