Re: Simple RF power oscillator

Hi Michael Black and CWatters,

I know of the MIT wireless power transmission but in my modest opinion
actually it is not so safe until today (5% of unwished far field is
present in their evanescent wave experiment).

My need is more close to www.ecoupled.com technology.

I try to describe what I've in mind.
Suppose a RF oscillator (e.g. Colpitts) which a LC resonator working
at few MHz. The inductance L should be a simple loop of copper wire
(one turn with diameter of about 0.7 feet). Placing near this loop
another little LC resonating at the same frequency the RF energy will
be efficiently transferred in this last one. If, for example, the
power oscillator is about 5 watt, the transferred energy is able to
light up a little bulb (for example).
While I've experience with antennas, high Q LC etc. I've not a scheme
for that type of oscillator. In my modest opinion it has to be as much
as possible easy, just to begin some experiments.
Probably, as written by Michael, the oscillator that I'm looking for
is similar those used for plasma applications.
Thanks to all you for your courtesy,
Antonio

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