[time-nuts] Orbital time-delayed angular momentum phasing....???!!

[Azelio Boriani]

To exploit an angular momentum modulation we need a demodulator able to
recognize that angular momentum... nowadays our demodulators cannot go
beyond amplitude, phase and their combination. Maybe I'm missing
something...

On Tue, Jul 17, 2012 at 6:59 PM, Michael Baker <mpb45 at clanbaker.org> wrote:

> Timenutters--
>
> Along the lines of splitting time into small increments, there
> is an interesting article in the May 2012 issue of the
> IEEE Spectrum Journal.
>
> It describes experiments with what I am calling "cork-screw
> time-shift phasing modulation" or "orbital time-delayed angular
> momentum phasing" for lack of a better description of the
> process.  This is not the same as circular-polarization of a
> radiated signal.
>
> Visualize a 4-ft dia parabolic reflector which has been cut
> (sliced) in a straight line from any arbitrary point on its outer
> edge to its center.    Then, at the outer lip of the reflector
> surface, pull one side of the cut about a foot forward of the
> other side of the cut.  The separation is greatest at the edge
> of the dish, gradually becoming less and less as the cut
> approaches the center of the dish.
>
> The concept is that RF energy from the feed progressively
> strikes different areas of the dish slightly ahead (time-wise)
> from RF energy that strikes other parts of the dish.   Because
> the surface of the dish resembles a cork-screw the signal
> from the dish has elements that are time-delayed with
> respect to other parts.   Accordingly, data elements can be
> incorporated into the signal which have sightly different
> time-delay angular momentum properties.  Again, the folks
> working on this insist that this is not the same as circular
> polarity of the radiated signal such as is obtained with a
> helix antenna.
>
> At the receive end, the process is reversed, producing a
> signal which when demodulated can contain extra levels
> of data modulation superimposed on it.
>
> The article points out that there are skeptics of the process
> who say that this same modulation procedure can be done
> with other methods although the modulation and demodulation
> process would be much more complex.
>
> The orbital angular momentum of photons in the optical
> realm has been extensively studied, although applying these
> principles to RF is something new.
>
> Mike Baker
> ------------------------------
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>
>
>
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