On 7/23/22 8:07 PM, F1AMM wrote:
The complex impedance Z is given by Zo * (1+gamma) / (1-gamma)
Please can you explain me where is my mistake; I am like Saint Thomas.
Here is the digital test data (my antenna)
S11 = -0,310484238 +j 0,011489099
Zo = 50
With the formula
Z = Zo * (1+gamma) / (1-gamma)
it gives
Z = 95,02931686 + j 48,86414014
With my formula, it gives
Z = 26,3018063 +j 0,66894279
and this is what nanovna-saver displays
I must still have missed something :(
73
I get the same answer you do 26.4+j 0.669
using Excel
S11 -0.31048 0.011489
complex -0.31048+0.011489i
1+S11 0.68952+0.011489i
1-S11 1.31048-0.011489i
divide 0.526041061787863+0.0133788274211592i
*50 26.30205309 0.668941371
