pancho_hideboo
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I think differential Impedances, Zd can be calculated by the following.
However, I found different equation in https://www.maximintegrated.com/en/app-notes/index.mvp/id/915
I can not understand how to derive this equation.
How can I derive this equation ?
Code:
Gamma_d = (S11-S12-S21+S22)/2
Zd = 2*R0 * (1+Gamma_d)/(1-Gamma_d)However, I found different equation in https://www.maximintegrated.com/en/app-notes/index.mvp/id/915
Code:
Gamma_d = {(2*S11-S21)*(1-S22-S12) + (1-S11-S21)*(1+S22-2*S12)} / {(2-S21)*(1-S22-S12) + (1-S11-S21)*(1+S22)}
Zd = R0 * (1+Gamma_d)/(1-Gamma_d)How can I derive this equation ?
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