skrf.io.touchstone.Touchstone

class skrf.io.touchstone.Touchstone(file, encoding=None)

Class to read touchstone s-parameter files.

The reference for writing this class is the draft of the Touchstone(R) File Format Specification Rev 2.0 [1] and Touchstone(R) File Format Specification Version 2.0 [2]

References

[1]

https://ibis.org/interconnect_wip/touchstone_spec2_draft.pdf

[2]

https://ibis.org/touchstone_ver2.0/touchstone_ver2_0.pdf

Parameters:

• file (str | TextIO)

• encoding (str | None)

Attributes

sparameters	Touchstone data in tabular format.
version	The version string.

Methods

__init__	constructor
get_comment_variables	Convert hfss variable comments to a dict of vars.
get_comments	Returns the comments which appear anywhere in the file.
get_format	Returns the file format string used for the given format.
get_gamma_z0	Extracts Z0 and Gamma comments from touchstone file (if provided).
get_noise_data
get_noise_names
get_sparameter_arrays	Returns the s-parameters as a tuple of arrays.
get_sparameter_data	Get the data of the s-parameter with the given format.
get_sparameter_names	Generate a list of column names for the s-parameter data.
load_file	Load the touchstone file into the internal data structures.