On Thu, Oct 17, 2019 at 08:01 PM, Rune Broberg wrote:
I *think* the Cs/Ls you are after is already shown in the marker data
display? It's what's shown as "L equiv."/"C equiv."
The series resistance is the resistive part of the impedance display.
Hi Rune,
OK, so this this may just be down to terminology after all.
I guess what I'm looking for is something like the marker information presented in the AIM VNA software (see attached).
Having both Series and Parallel values displayed saves a lot of time if you are trying to work out values for matching networks.
I assume that these are calculated using the following formulae, but only the inductance or capacitance value is shown as appropriate
Rs = Zmag*cos (phase)
Xs = Zmag*sin (phase)
Rp = ( Rs^2 + Xs^2 ) / Rs
Xp = ( Rs^2 + Xs^2 ) / Xs
Ls= Xs / ( 2 * Pi * f )
Cs = 1 / ( 2 * Pi * f * Xs )
Lp= Xp / ( 2 * Pi * f )
Cp = 1 / ( 2 * Pi * f * Xp )
Q = Rp / Xp = Xs / Rs
Rp = Rs ( 1 + Q^2 )
Regards,
Martin - G8JNJ
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Regards,
Martin - G8JNJ
