W5DXP wrote in message ...
[s11]=rho, rho being just the magnitude of the s11.
I just told you that is not always true.
s11 is the reflection coefficient when a2=0
|rho| is the reflection coefficient when a2=a2
In a Z0-matched system with reflections, they are NOT equal.
You're right, but we are talking about a one-port network, the
antenna and transmission line.
Slick
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