Cecil, W5DXP wrote:
"There is no phase information in standing wave current phase."

Kraus and Terman agree with Cecil.

Kraus writes on page 239 of his 1950 edition of "Antennas":
"It is generally assumed that current distribution of an infinitesimally
thin antenna (l/a=infinity) is sinusoidal, and that the phase is
constant over a 1/2-wavelength interval, changing abruptly by
180-degrees between intervals."

This agrees with Terman who writes on page 94 of his 1955 edition of
"Electronic and Radio Engineering":
"When the load impedance does not equal the characteristic impedance (as
at the open-circuit at the standing-wave antenna tip), the phase
relations are complicated by the presence of the reflected wave. The
phase of the resulting voltage (or current) then oscillates about the
phase of the voltage (or current) of the incident wave , as illustrated
in Fig. 4-5.The phase shift under these conditions tends to be
concentrated in regions where the voltage (or current) goes through a
minimum;----."

Pity the fool who argues with Kraus or Terman.

Best regards, Richard Harrison, KB5WZI