Link budget analysis of a biocompatible dual-band implantable antenna for Intracranial Pressure monitoring

Next generation (next-gen) Implantable Medical Devices (IMDs) require miniature, high-performance biocompatible antennas. In this study, we numerically assess the telemetry link between a biocompatible dual-band implantable antenna and an external receiver. Two telemetry scenarios are examined: with and without the presence of an intermediate relay antenna. Use of the relay antenna is proposed towards a more stable and reliable telemetry link. Its aim is to improve the energy efficiency of the implant, while limiting the electromagnetic exposure of biological tissues. The antenna is considered to be implanted inside the human head for Intracranial Pressure (ICP) monitoring applications.