I've gained interest in wireless energy transmission as I have an idea that I may patent. But before I research any further, I am wondering if anyone knows if "radio waves" can power a device in the same way as microwaves do (which is essentially the same)?

So for an example, (from reading), a portable radio could be powered via microwaves that are emitted from wherever/whatever, correct?! My question is: Could that same radio be powered by radio waves (the same radio waves it receives as music) that are emitted from AM/FM broadcasting stations?

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Including lasers, microwaves, and induction. Witricity powered: witric power.

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