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z_params = s2z(s_params,z0)
z_params = s2z(s_params,z0) converts the scattering parameters s_params into the impedance parameters z_params. The s_params input is a complex N-by-N-by-M array, representing M N-port S-parameters. z0 is the reference impedance; its default is 50 ohms. z_params is a complex N-by-N-by-M array, representing M N-port Z-parameters.
Convert S-parameters to Z-parameters:
%Define a matrix of S-parameters s_11 = 0.61*exp(j*165/180*pi); s_21 = 3.72*exp(j*59/180*pi); s_12 = 0.05*exp(j*42/180*pi); s_22 = 0.45*exp(j*(-48/180)*pi); s_params = [s_11 s_12; s_21 s_22]; z0 = 50; %Convert to Z-parameters z_params = s2z(s_params,z0)
abcd2z | h2z | s2abcd | s2h | s2y | y2z | z2s

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