Energy Harvesting and Remote Powering for Implantable Biosensors
The paper reviews some popular techniques to harvest energy for implantable biosensors. For each technique, the advantages and drawbacks are discussed. Emphasis is placed to the inductive links, able to deliver power wirelessly through the biological tissues and to enable a bidirectional data communication with the implanted sensors. Finally, high frequency inductive links are described, focusing also on the power absorbed by the tissues.