[sdiy] skin effect

[Czech Martin]

I have a question related to the following effect:

We can assign some inductance and resistance to a piece
of wire. Also some capacitance (related to other wires
or planes).

As we reach higher frequencies, the eddy currents in the wire
will force the current out of the middle into the outer regions,
this is called "skin effect". This is the reason why RF wires sometimes
are silver plated.

If I remember well this will increase the resistance and increase the
inductance of the wire. 

A simple spice model of the wire does not inlcude this effect.
Therefore all simulations show too much ringing, or too less damping.

I therefore propose that the inductance/resistance is modeled
as some parallel circuit of RL elements. The largest inductance
and some resistance will model the DC case up to some frequency.
Then a parallel branch will take over with less inductance
and more resistance. And so on.

Will this be a good approximation for the skin effect, or
is there some misconception in it?

m.c.