from the on-the-right-wavelength? dept.
Edd writes "I was just wondering if anybody else thought it possible to power nanoscale electronic devices with the ambient RF [radio frequency] signals that are present in our everyday lives. I want to know what are some of the limitations of such a thing (other than it is a really small amount of power). The angle I am coming from is from electromagnetic induction in its simplest form, the idea being that you have electronics that have no onboard power supply, but draw all their electric power needs from RF or other electromagnetic waves that are present in the environment. It would be neat to have a wireless power supply, no?"
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