skrf.calibration.calibration.SDDL

class skrf.calibration.calibration.SDDL(measured, ideals, *args, **kwargs)[source]

Short Delay Delay Load (Oneport Calibration)

One-port self-calibration, which contains a short, a load, and two delays shorts of unity magnitude but unknown phase. Originally designed to be resistant to flange misalignment, see [1].

References

[1]
  1. Liu and R. M. Weikle, “A reflectometer calibration method resistant to waveguide flange misalignment,” Microwave Theory and Techniques, IEEE Transactions on, vol. 54, no. 6, pp. 2447-2452, Jun. 2006.

Attributes

biased_error Estimate of biased error for overdetermined calibration with multiple connections of each standard
caled_ntwk_sets Returns a NetworkSet for each caled_ntwk, grouped by their names
caled_ntwks List of the corrected calibration standards
coefs Dictionary or error coefficients in form of numpy arrays
coefs_12term Dictionary of error coefficients for 12-term Model
coefs_12term_ntwks Dictionary or error coefficients in form of Network objects
coefs_3term Dictionary of error coefficients for One-port Error model
coefs_3term_ntwks Dictionary of error coefficients in form of Network objects
coefs_8term Dictionary of error coefficients for 8-term (Error-box) Model
coefs_8term_ntwks Dictionary of error coefficients in form of Network objects
coefs_ntwks Dictionary of error coefficients in form of Network objects
error_ntwk The calculated error Network or Network[s]
family
frequency Frequency object of the calibration
normalized_directivity the directivity normalized to the reflection tracking
nstandards number of ideal/measurement pairs in calibration
output_from_run Returns any output from the run().
residual_ntwk_sets Returns a NetworkSet for each residual_ntwk, grouped by their names
residual_ntwks Dictionary of residual Networks
total_error Estimate of total error for overdetermined calibration with multiple connections of each standard.This is the combined effects of both biased and un-biased errors
unbiased_error Estimate of unbiased error for overdetermined calibration with multiple connections of each standard
verify_12term
verify_12term_ntwk

Methods

__init__ Short Delay Delay Load initializer
apply_cal Apply correction to a Network
apply_cal_to_all_in_dir
apply_cal_to_list Apply correction to list of dict of Networks.
embed Embed an ideal response in the estimated error network[s]
from_coefs Creates a calibration from its error coefficients
from_coefs_ntwks Creates a calibration from its error coefficients
plot_caled_ntwks Plots corrected calibration standards
plot_errors Plots biased, unbiased and total error in dB scaled
plot_residuals Plot residual networks.
pop Remove and return tuple of (ideal, measured) at index.
remove_and_cal Remove a cal standard and correct it, returning correct and ideal
run
update_coefs update currect dict of error coefficients
write Write the Calibration to disk using write()