Graphene-based flexible antenna for wearable and biomedical devices

Flexible antenna design is described in this study, prototyping of a flexible graphene-based antenna for data transmission from wearable arm and abdomen imaging equipment over a 5G network. The antenna uses an 18-μm-thick graphene thin sheet for the conductive and ground radiating patch. The proposed design operates in the from 25.2-40.2 GHz frequency band and it based on the radiation patch fractal structure which allowed for adequate antenna flexibility. The invention is appropriate for wearable applications because the patch was constructed on a flexible polyamide substrate that was 1.575 mm thick. In terms of the radiation pattern, gain, and antenna reflection coefficient, the proposed design is studied and analyzed. Additionally, a time-domain signal analysis between two antennas as transmitter and receiver was carried out to mimic wearable device real-time communication. A 3D modeling and analysis of a flexible 5G antenna for communication in the arm to assess its basic electromagnetic properties is introduced. Also the design was used with abdomen in order to replicate actual biological settings, detect and track tumor growth and dissemination throughout the body. The simulation results showed that the antenna shows simulated sensitivity to tumor-induced dielectric changes, particularly in its advanced stages.