skrf.network.s2z_active
- skrf.network.s2z_active(s, z0, a)[source]
Return the active Z-parameters for a defined wave excitation a.
The active Z-parameters are defined by:
\[\mathrm{active}(z)_{m} = z_{0,m} \frac{1 + \mathrm{active}(s)_m}{1 - \mathrm{active}(s)_m}\]where \(z_{0,m}\) is the characteristic impedance and \(\mathrm{active}(s)_m\) the active S-parameter of port \(m\).
- Parameters:
s (complex array) – scattering parameters (nfreqs, nports, nports)
z0 (complex array-like or number) – port impedances.
a (complex array of shape (n_ports)) – forward wave complex amplitude
- Returns:
z_act – active Z-parameters for the excitation a
- Return type:
complex array of shape (nfreqs, nports)
See also
s2s_activeactive S-parameters
s2y_activeactive Y-parameters
s2vswr_activeactive VSWR