s2abcd
Convert S-parameters to ABCD-parameters
Description
converts
the scattering parameters to the ABCD-parameters. abcd_params
= s2abcd(s_params
,z0
)
Examples
Convert S-Parameters to ABCD-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 S-parameters to ABCD-parameters.
abcd_params = s2abcd(s_params,z0)
abcd_params = 2×2 complex
0.0633 + 0.0069i 1.4958 - 3.9839i
0.0022 - 0.0024i 0.0732 - 0.2664i
Input Arguments
s_params
— 2N-port S-Parameters
2N-by-2N-by-M array of
complex numbers
2N-port S-parameters, specified as a 2N-by-2N-by-M array of complex numbers, where M represents the number of frequency points of 2N-port S-Parameters.
z0
— Reference impedance
50
(default) | positive real scalar
Reference impedance of 2N-port S-parameters, specified as positive real scalar in ohms.
Note
z0
must be a positive real scalar or vector. If z0
is a vector, then the vector must be equal to the number of network parameter data points or
frequency vector.
Output Arguments
abcd_params
— 2N-port ABCD parameters
2N-by-2N-by-M array of
complex numbers
2N-port ABCD parameters, returned as a complex 2N-by-2N-by-M array, where M represents the number of frequency points of 2N-port ABCD-parameters. The output ABCD-parameters matrices have distinct A, B, C, and D submatrices:
References
[1] Pozar, David M. Microwave Engineering. 3rd ed, J. Wiley, 2005.
Version History
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