The Internet of Things (IoT) will bring deployment of massive numbers of sensors embedded in infrastructure and assets. A key concern will be to provide energy to these sensors as often it is impossible or at least very cumbersome and costly to provide permanent power. Today, the norm is therefore to rely on batteries to provide this energy, but with growing numbers of sensors the cost end effort associated with maintenance of these sensors with battery changes can very well become prohibitive. One promising approach to overcome this is to harvest energy from radio transmissions but the power available is very low. In this project, we research state of the art circuitry to maximize the efficiency in the harvesting process so that the harvested energy is maximised.
Contact: Anders Nejdel