Whitepaper here with all the math:
   http://getfreevolt.com/downloads/RF%20Energy%20Harvesting%20Whitepaper.p=
df


-----Original Message-----
>From: Charles Craft <chucksea@mindspring.com>
>Sent: Sep 30, 2015 12:06 PM
>To: PIClist <piclist@MIT.EDU>
>Subject: [EE] Perpetual Power (tm)
>
>http://arstechnica.co.uk/gadgets/2015/09/freevolt-perpetual-free-rf-energy=
-harvesting-to-power-the-internet-of-things/
>
>I think I've learned here on the piclist to run when the words "perpetual"=
 and "energy/power" are used in the same sentence. :-)
>
>"Freevolt harvests free volts (!) from a wide variety of RF radiation sour=
ces, which can then be used to power the various sensors and microcontrolle=
rs that make up the (are we there yet?) Internet of Things."
>
>
>
>--=20
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>View/change your membership options at
>http://mailman.mit.edu/mailman/listinfo/piclist
--=20
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