Jim Kelley wrote:
Since a standing wave is an interference pattern created by traveling
waves, having 'only standing waves' would obviously be an impossible
circumstance.

Nonsense. All it takes is two identical waves traveling in
opposite directions along the same path. Such happens at the
open-circuit or short-circuit point in a 1/4WL stub.

I urge you to please investigate the mathematical issues associated with
summing counter-rotating vectors.

I have, Jim. It is you who seems confused. If two coherent
phasors of equal amplitudes and opposite rotations are
phasor-added, the resulting total phase is a constant.

1 at zero deg + 1 at zero deg = 2 at zero deg
1 at 45 deg + 1 at -45 deg = 1.4.4 at zero deg
etc.

Correct me if I'm wrong, but as far as I know you are the only one
suggesting that standing wave current phase - whatever that is - could
be delayed, measured, and calculated.

Nonsense, Jim, standing wave current phase is what EZNEC
reports for a standing-wave antenna.

If you are incapable of comprehending, don't feel bad.
My dog doesn't understand it either but I still love her.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com