Roger wrote:
If we can accept that the storage factor is always SF = SWR + 1 for all
situations, then we have a very convient way to predict the voltage
increase that results form impedance mismatch at a discontinuity.

The s-parameter equations do that automatically.
That's part of their usefulness.

Incidentally, the power reflection coefficients,
rho^2, and the power transmission coefficient,
(1-rho^2), also do the same thing. That's why
a power analysis is often easier than a voltage
analysis.
--
73, Cecil http://www.w5dxp.com