Ian White, GM3SEK wrote:
"It had been correct, when they incorrectly revised it (the conjugate
reference), now it has been corrected again."

Hope they got it right this time.

My dictionary says: "conjugate - Either of a pair of complex numbers
that are mutually related in that their real parts are identical and the
imaginary part of one is the negative of the imaginary part of the
other.

We find maximum power transfer requires equal resistances in source and
load. Also reactance, if any, be tuned out of the circuit. This is a
conjugate match, such that source and load are conjugates by the
dictionary definition.

Many texts go into detail. I like the story of conjugates given in
"Transmission Lines, Antennas, and Wave Guides", If it were at hand, I
would quote from it. Found it. See page 43. The authors are King, Mimno,
and Wing.

Best regards, Richard Harrison, KB5WZI