calibration (skrf.calibration.calibration)

This module provides objects for VNA calibration. Specific algorithms inherit from the common base class Calibration.

Base Class

Calibration(measured, ideals[, ...])

Base class for all Calibration objects.

One-port

OnePort(measured, ideals, *args, **kwargs)	Standard algorithm for a one port calibration.
SDDL(measured, ideals, *args, **kwargs)	Short-Delay-Delay-Load (Oneport Calibration), formulation by Arsenovic et, al.
SDDLWeikle(measured, ideals, *args, **kwargs)	Short-Delay-Delay-Load (Oneport Calibration), Liu-Weikle formulation.
PHN(measured, ideals, *args, **kwargs)	Pair of Half Knowns (Oneport Calibration).

Two-port

TwelveTerm(measured, ideals[, n_thrus, ...])	12-term, full two-port calibration.
SOLT(measured, ideals[, n_thrus])	Short-Open-Load-Thru, Full two-port calibration.
EightTerm(measured, ideals[, switch_terms, ...])	General EightTerm (aka Error-box) Two-port calibration.
UnknownThru(measured, ideals, *args, **kwargs)	Two-Port Self-Calibration allowing the thru standard to be unknown.
LRM(measured, ideals[, switch_terms, isolation])	Line-Reflect-Match self-calibration.
LRRM(measured, ideals[, switch_terms, ...])	Line-Reflect-Reflect-Match self-calibration.
MRC(measured, ideals, *args, **kwargs)	Misalignment Resistance Calibration.
TRL(measured[, ideals, estimate_line, ...])	Thru-Reflect-Line (also called LRL for Line-Reflect-Line).
MultilineTRL
NISTMultilineTRL(measured, Grefls, l[, ...])	NIST Multiline TRL calibration.
TUGMultilineTRL(line_meas, line_lengths[, ...])	TUG Multiline TRL calibration.
SixteenTerm(measured, ideals[, switch_terms])	General SixteenTerm (aka Error-box) Two-port calibration.
LMR16(measured, ideals[, ideal_is_reflect, ...])	SixteenTerm Load-Match-Reflect self-calibration.
Normalization(measured, ideals[, ...])	Simple Thru Normalization.

Multi-port

MultiportCal(cal_dict[, isolation])	Multi-port VNA calibration using two-port calibration method.
MultiportSOLT(method, measured, ideals[, ...])	Multi-port VNA calibration using two-port calibration method with one transmissive standard for each two-port pair.

Three Receiver (1.5 port)

TwoPortOnePath(measured, ideals[, n_thrus, ...])	Two Port One Path Calibration (aka poor man's TwelveTerm).
EnhancedResponse(measured, ideals[, ...])	Enhanced Response Partial Calibration.

Switch Terms

compute_switch_terms(ntwks)

A method for indirectly computing the switch terms of a VNA using measurements of at least three transmissive reciprocal devices.

Generic Methods

ideal_coefs_12term(frequency)	An ideal set of 12term calibration coefficients.
terminate(ntwk, gamma_f, gamma_r)	Terminate a network with switch terms.
terminate_nport(ntwk, gammas)	Terminate N-port network with switch terms.
unterminate(ntwk, gamma_f, gamma_r)	Unterminate switch terms from a raw measurement.
determine_line(thru_m, line_m[, line_approx])	Determine S21 of a matched line.
determine_reflect(thru_m, reflect_m, line_m)	Determine reflect from a thru, reflect, line measurements.
convert_12term_2_8term(coefs_12term[, ...])	Convert the 12-term and 8-term error coefficients.
convert_8term_2_12term(coefs_8term)
align_measured_ideals(measured, ideals)	Aligns two lists of networks based on the intersection of their names.
two_port_error_vector_2_Ts(error_coefficients)
error_dict_2_network(coefs, frequency[, ...])	Create a Network from a dictionary of standard error terms.

PNA interaction

convert_skrfcoefs_2_pna(coefs[, ports])	Convert skrf error coefficients to pna error coefficients
convert_pnacoefs_2_skrf(coefs)	Convert PNA error coefficients to skrf error coefficients.