skrf.data.open_2p

skrf.data.open_2p = 2-Port Network: 'open', 1000000000.0-10000000000.0 Hz, 10 pts, z0=[50.+0.j 50.+0.j]

An n-port electrical network.

For instructions on how to create Network see __init__(). An n-port network [1] may be defined by three quantities

network parameter matrix (s, z, or y-matrix)
port characteristic impedance matrix
frequency information

The Network class stores these data structures internally in the form of complex numpy.ndarray’s. These arrays are not interfaced directly but instead through the use of the properties:

Property	Meaning
`s`	Scattering parameter matrix.
`z0`	Characteristic impedance matrix.
`f`	Frequency vector.

Although these docs focus on s-parameters, other equivalent network representations such as z and y are available. Scalar projections of the complex network parameters are accessible through properties as well. These also return numpy.ndarray’s.

Property	Meaning
`s_re`	Real part of the s-matrix.
`s_im`	Imaginary part of the s-matrix.
`s_mag`	Magnitude of the s-matrix.
`s_db`	Magnitude in log scale of the s-matrix.
`s_deg`	Phase of the s-matrix in degrees.

The following operations act on the networks s-matrix.

Operator	Function
+	Element-wise addition of the s-matrix.
-	Element-wise difference of the s-matrix.
*	Element-wise multiplication of the s-matrix.
/	Element-wise division of the s-matrix.
**	Cascading (only for 2-ports).
//	De-embedding (for 2-ports, see `inv`).

Different components of the Network can be visualized through various plotting methods. These methods can be used to plot individual elements of the s-matrix or all at once. For more info about plotting see the ../../tutorials/Plotting tutorial.

Method	Meaning
`plot_s_smith()`	Plot complex s-parameters on smith chart.
`plot_s_re()`	Plot real part of s-parameters vs frequency.
`plot_s_im()`	Plot imaginary part of s-parameters vs frequency.
`plot_s_mag()`	Plot magnitude of s-parameters vs frequency.
`plot_s_db()`	Plot magnitude (in dB) of s-parameters vs frequency.
`plot_s_deg()`	Plot phase of s-parameters (in degrees) vs frequency.
`plot_s_deg_unwrap()`	Plot phase of s-parameters (in unwrapped degrees) vs frequency.

Network objects can be created from a touchstone or pickle file (see __init__()), by a Media object, or manually by assigning the network properties directly. Network objects can be saved to disk in the form of touchstone files with the write_touchstone() method.

An exhaustive list of Network Methods and Properties (Attributes) are given below

References