skrf.calibration.calibration.compute_switch_terms

skrf.calibration.calibration.compute_switch_terms(ntwks)[source]

A method for indirectly computing the switch terms of a VNA using measurements of at least three transmissive reciprocal devices. The VNA does not need to be calibrated, and more than three reciprocal devices can be used. However, the accuracy of the computed switch terms depends on the uniqueness of the measured reciprocal devices. Devices with asymmetric structure and semi-reflective properties can help ensure the conditioning of the system matrix, which solves the switch terms.

See [1] and [2]

Parameters:: ntwks (List of networks) – measured reciprocal devices. At least 3 required.
Returns:: Gammas – The order is [Gamma21, Gamma12]. Gamma21 is forward and Gamma12 is reverse.
Return type:: List of one-port networks of the switch terms.

References

with Reciprocal Devices,” 2023, e-print: https://arxiv.org/abs/2306.07066