1.  All rights reserved to Humavox Ltd

2. RF Energy Harvesting Ambient Energy sources

3. RF Energy Harvesting Ambient RF Energy sources  All rights reserved to Humavox Ltd

4. RF Energy Harvesting The Concept Base station  All rights reserved to Humavox Ltd Tx Rx

5. RF Energy Harvesting The Harvesting Unit  All rights reserved to Humavox Ltd Single source Static receiver Portable receiver Multiple sources Static receiver Portable receiver

6. RF Energy Harvesting The Harvesting Unit impedance matching Rectifier RF2DC Summation & Storage Application  All rights reserved to Humavox Ltd

7. RF Energy Harvesting The Harvesting Antenna Narrow band antenna wide band antenna  All rights reserved to Humavox Ltd Antenna directivity

8. RF Energy Harvesting The Harvester IM network Frequency and power consideration E(%)  All rights reserved to Humavox Ltd

9. RF Energy Harvesting The Harvester RF2DC unit  All rights reserved to Humavox Ltd

10. RF Energy Harvesting The Harvester storage & summation unit Single VS. multiple sources C RF2DC 1 C RF2DC 2 C RF2DC n + C storage  All rights reserved to Humavox Ltd C step up C RF2DC

11. RF Energy Harvesting Conclusions  All rights reserved to Humavox Ltd advantage: Free energy Wireless energy transfer Portable devices Disadvantage: Low power density (environment) Low efficiency (RF2RF) High efficiency conversion - complicated system Limitation of ISM band