edges_cal.reflection_coefficient.SMatrix

class edges_cal.reflection_coefficient.SMatrix(s)

A scattering matrix for a two-port network.

This class eases some of the computations performed with S-parameters. Most of the methods are based on https://en.wikipedia.org/wiki/Scattering_parameters.

See also https://en.wikipedia.org/wiki/Two-port_network#Interrelation_of_parameters

Methods

__init__(s)	Method generated by attrs for class SMatrix.
as_transfer_matrix()	Return a transfer matrix from the SMatrix.
cascade_with(other)	Return a new TwoPortNetwork from the conjunction of two two-port networks.
from_calkit_and_vna(calkit, standards)	Generate an SMatrix from a Calkit definition, and standards measurements.
from_sparams(s11, s12[, s21, s22])	Create a SMatrix from S-parameters.
from_transfer_matrix(t)	Create an SMatrix from a transfer matrix.
from_transmission_line(line, length[, …])	Generate a new SMatrix from a given transmission line object.
is_lossless()	Whether the S-matrix describes a lossless network.
is_reciprocal()	Whether the S-matrix describes a reciprocal network.
voltage_standing_wave_ratio_in()	The Voltage Standing Wave Ratio (VSWR) of the network input.
voltage_standing_wave_ratio_out()	The Voltage Standing Wave Ratio (VSWR) of the network output.

Attributes

complex_linear_gain	The complex linear gain of the network, i.e. S12.
determinant	The determinant of the SMatrix.
input_return_loss	The loss, 1/|S11| in decibels.
insertion_loss	The insertion loss of the network.
nfreq	The number of frequencies in the S-matrix (the last axis).
output_return_loss	The output loss, 1/|S22|, in decibels.
reflection_coefficient_in	The reflection coefficient of the network input, S11.
reflection_coefficient_out	The reflection coefficient of the network output, S22.
reverse_gain	The reverse gain, S|12|, in decibels.
reverse_isolation	The reverse isolation, 1/|S12|, in decibels.
s11	The S11 coefficient of the network.
s12	The S12 coefficient of the network.
s21	The S21 coefficient of the network.
s22	The S22 coefficient of the network.
scalar_linear_gain	The abs value of the linear gain of the network, |S21|.
scalar_logarithmic_gain	The scalar gain, |S21|, in decibels.
s