Antonio Vernucci wrote:
I cannot follow your reasoning as I cannot understand what is a
"Z0-match point".

A Z0-match is defined in my ARRL Antenna Book.

Then, your "Z0-match point" must be something else which I cannot figure
out.

Here is an example of a Z0-match to 50 ohms at point '+':

XMTR--50 ohm coax---+---1/2 WL 300 ohm feedline---50 ohm load

The SWR on the 300 ohm feedline is 6:1. The SWR on the 50
ohm coax is 1:1. What happens to the energy and momentum
of the reflected waves on the 300 ohm feedline? Seems
obvious that there is destructive interference toward
the XMTR and constructive interference toward the load.
--
73, Cecil http://www.w5dxp.com