skrf.network.y2s
- skrf.network.y2s(y, z0=50, s_def='power')[source]
Convert admittance parameters [1] to scattering parameters [2].
For power-waves, from [3]:
\[S = F (1 – G Y) (1 + G Y)^{-1} F^{-1}\]where \(G = diag([Z_0])\) and \(F = diag([1/2\sqrt{|Re(Z_0)|}])\)
For pseudo-waves, Eq.(73) from [4]:
\[S = U (Y^{-1} - G) (Y^{-1} + G)^{-1} U^{-1}\]where \(U = \sqrt{Re(Z_0)}/|Z_0|\)
- Parameters:
y (complex array-like) – admittance parameters
z0 (complex array-like or number) – port impedances
s_def (str -> s_def : can be: 'power', 'pseudo' or 'traveling') – Scattering parameter definition : ‘power’ for power-waves definition [3], ‘pseudo’ for pseudo-waves definition [4]. ‘traveling’ corresponds to the initial implementation. Default is ‘power’.
- Returns:
s – scattering parameters
- Return type:
complex array-like or number
See also
s2z
,s2y
,s2t
,z2s
,z2y
,z2t
,y2s
,y2z
,y2z
,t2s
,t2z
,t2y
,Network.s
,Network.y
,Network.z
,Network.t
References