A Novel Multifunction Implantable Antenna Design for Biomedical Telemetry

In this work, a novel multifunction, multiband, and implantable PIFA antenna for biomedical telemetry is proposed. The covered frequency bands are the Medical Device Radiocommunications Service (MedRadio) (401 – 406 MHz), and Industrial, Scientific, and Medical (ISM) (433.1 – 434.8, and 902.8 – 928.0 MHz, and 2.4 – 2.4835 GHz), and the Wireless Medical Telemetry Service (WMTS) (1.395 – 1.400, and 1.427 – 1.432 GHz). The third ISM frequency band is reserved to the Wireless Power Transfer (WPT) function, The fourth ISM frequency band is dedicated to the wake - up operation, and the other operation frequency bands are proposed for data telemetry communications. The miniaturization is achieved by the shorting in PIFA, the radiating patch shaping by meandering and arms inserting, and open-ended slots inserting in the ground plane, the occupied volume is of 78.52mm
³
. Both the Equivalent Isotropic Radiated Power (EIRP) and the Specific Absorption Rate (SAR) restrictions are considered for the data telemetry, and the WPT functions performances. The obtained performances make the proposed antenna a good candidate for telemetry functions through muscle implants devices.