GGAPBE96
Member level 2
According to some reference books,impedance can be calculated by the following equations.
Z1 = (1+S11)*Z0/(1-S11)
Z2 = 2Z0*(1/S21-1)
where,S11 and S21 are Sparameters and Z0 is the characteristic impedance (50Ohm).
I simulate a resonator and plot Z1,Z2,but Z2 seems to be strange.
(There is no resonance point)
Why are the two impedance different ??
Z1 = (1+S11)*Z0/(1-S11)
Z2 = 2Z0*(1/S21-1)
where,S11 and S21 are Sparameters and Z0 is the characteristic impedance (50Ohm).
I simulate a resonator and plot Z1,Z2,but Z2 seems to be strange.
(There is no resonance point)
Why are the two impedance different ??