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How to use RF Energy Harvesting for Wireless Charging

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Humavox - Wireless Power Technology
Humavox - Wireless Power Technology

Understanding Humavox innovative wireless charging technology using RF energy harvesting.

Technologie
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© Copyright 2011-2014 HumaVox Ltd 
RF Energy Harvesting Ambient Energy sources © Copyright 2011-2014 HumaVox Ltd 
RF Energy Harvesting Ambient RF Energy sources © Copyright 2011-2014 HumaVox Ltd 
RF Energy Harvesting The Concept Tx Rx Base station © Copyright 2011-2014 HumaVox Ltd 
RF Energy Harvesting The Harvesting Unit Single source Static receiver Multiple sources Portable receiver Static receiver © Copyright 2011-2014 HumaVox Ltd  Portable receiver
RF Energy Harvesting The Harvesting Unit impedance matching Rectifier RF2DC © Copyright 2011-2014 HumaVox Ltd Summation & Storage  Application
RF Energy Harvesting The Harvesting Antenna wide band antenna Antenna directivity Narrow band antenna © Copyright 2011-2014 HumaVox Ltd 
RF Energy Harvesting The Harvester IM network Frequency and power consideration E(%) Passive Active 100 90 80 70 60 50 40 30 20 10 0 (-dBm) © Copyright 2011-2014 HumaVox Ltd 0 dBm  (+dBm)
RF Energy Harvesting The Harvester RF2DC unit © Copyright 2011-2014 HumaVox Ltd 
RF Energy Harvesting The Harvester storage & summation unit Single VS. multiple sources CRF2DC 1 CRF2DC 2 + Cstorage CRF2DC n CRF2DC Cstep up © Copyright 2011-2014 HumaVox Ltd 
RF Energy Harvesting Conclusions 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 © Copyright 2011-2014 HumaVox Ltd 

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How to use RF Energy Harvesting for Wireless Charging

  • 1. © Copyright 2011-2014 HumaVox Ltd 
  • 2. RF Energy Harvesting Ambient Energy sources © Copyright 2011-2014 HumaVox Ltd 
  • 3. RF Energy Harvesting Ambient RF Energy sources © Copyright 2011-2014 HumaVox Ltd 
  • 4. RF Energy Harvesting The Concept Tx Rx Base station © Copyright 2011-2014 HumaVox Ltd 
  • 5. RF Energy Harvesting The Harvesting Unit Single source Static receiver Multiple sources Portable receiver Static receiver © Copyright 2011-2014 HumaVox Ltd  Portable receiver
  • 6. RF Energy Harvesting The Harvesting Unit impedance matching Rectifier RF2DC © Copyright 2011-2014 HumaVox Ltd Summation & Storage  Application
  • 7. RF Energy Harvesting The Harvesting Antenna wide band antenna Antenna directivity Narrow band antenna © Copyright 2011-2014 HumaVox Ltd 
  • 8. RF Energy Harvesting The Harvester IM network Frequency and power consideration E(%) Passive Active 100 90 80 70 60 50 40 30 20 10 0 (-dBm) © Copyright 2011-2014 HumaVox Ltd 0 dBm  (+dBm)
  • 9. RF Energy Harvesting The Harvester RF2DC unit © Copyright 2011-2014 HumaVox Ltd 
  • 10. RF Energy Harvesting The Harvester storage & summation unit Single VS. multiple sources CRF2DC 1 CRF2DC 2 + Cstorage CRF2DC n CRF2DC Cstep up © Copyright 2011-2014 HumaVox Ltd 
  • 11. RF Energy Harvesting Conclusions 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 © Copyright 2011-2014 HumaVox Ltd 