Art Unwin wrote:
At the moment I see no mechanism that supports the capacitor field to
expire in the direction of incoming current
prior to the completion of the forward period.

The "capacitive" field is the *electric* field which is
at a *maximum* amplitude at the tip of a dipole. It is
the magnetic (inductive) field that is close to zero
at the tip of a dipole.
--
73, Cecil http://www.w5dxp.com