A German university offers a dynamic range extender for the recovery of electrical energy from electromagnetic radiation.
There are different approaches to power electronic devices. Possibilities exist to charge via the so-called "energy harvesting" batteries or to provide a direct source of energy. As an example: the energy of electromagnetic radiation in the 2.4 GHz band can be used for this. However, the efficiency of such devices decreases rapidly with decreasing power. The basic structure of this invention is the balanced rectifier as it can be seen in the picture. It consists of a quadrature coupler and two rectifiers. Even in a significantly lower power range (improvement by 10 to 15dB) a high efficiency in energy production can still be achieved.
The dynamic range extender can be used in many areas. It can extend the life of electronic devices or provide power to sensors.
The university offers a license agreement to semiconductor manufacturers. A technical cooperation is offered to further develop the application.