Ambient radio frequency power harvesting: A drop in the bucket
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Ambient radio frequency power harvesting
Wireless power transmission - where TV towers and mobile phone masts could be used to create a sea of ambient radio frequency (RF) energy to power devices - has been a dream since the age of Nikola Tesla. However power harvesting products based on RF will remain a niche market during 2012 due to significant technical challenges. One issue is the scarcity of ambient RF energy with solar, a much more plentiful resource. Another problem is that the amount of power density from an RF source varies dramatically depending on the distance and location of the user. Interference from other environmental factors and the conversion process also add hurdles. Charging a tablet in this manner would be like filling a swimming pool with a shot glass. There are a few applications - such as ceiling sensors and remote controls - that may be tuned to RF but the sector will remain niche with moderate growth potential in 2012.
- Why explore this topic?
- Why will RF technology will yield only modest potential in 2012?
- What are some applications for RF technology?
- Are there related technologies that may have greater potential?
- Duncan Stewart, Director of Deloitte Canada Research and co-author of TMT Predictions
- Kelly McDonald, manager, Deloitte Canada Consulting, specializing in technology integration
Holly Seguine, Senior Manager, Online Communications, Deloitte Touche Tohmatsu Limited
TMT Predictions 2012
Explore all the predictions.