SAR reduction with a compact CP implantable antenna employing sorting pin and slot

This research presents a very small implantable slotted antenna designed for biomedical equipment. The proposed antenna boasts the smallest size to date, with a volume of 5.14 mm³. In the Industrial, Scientific, and Medical (ISM) band, acceptable values of Specific Absorption Rate, Impedance bandwidth, and circular polarization have been achieved by the employment of meander path, slots, and sorting pin procedures. Using Roger RT/duroid material, the suggested antenna has a resonance frequency of 2.45 GHz and an S11 − 23.2 dB. It also has an impedance bandwidth of 40 MHz from 2.43 GHz to 2.47 GHz, an Axial Ratio Bandwidth of 30 MHz from 2.45 GHz to 2.48 GHz, and SAR 815. The suggested antenna’s axial ratio bandwidth, return loss, and substates of materials, as well as depths of penetration, are all carefully examined. Overall, this study paper’s in vitro model yielded good results.