pancho_hideboo
Advanced Member level 5
- Joined
- Oct 21, 2006
- Messages
- 2,847
- Helped
- 767
- Reputation
- 1,536
- Reaction score
- 733
- Trophy points
- 1,393
- Location
- Real Homeless
- Activity points
- 17,490
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 ?
Last edited:
