US 2026/0299072 A1 · CROSSTALK TOLERANT LRRM AUTO-LOAD INDUCTANCE CALIBRATION

Abstract

This disclosure relates to systems and methods of calibrating ports of a vector network analyzer (VNA). In some embodiments, a magnitude of an expected reflection and magnitudes for an estimated reflection for each of a plurality of estimated load inductance values for a reflection standard are determined. Both the magnitude of an expected reflection and magnitudes for an estimated reflection for the reflection standard are crosstalk corrected. The difference between the magnitude of the expected reflection the magnitude of the estimated reflections are determined and an load inductance value is selected that minimizes a sum of the difference between the magnitude of the expected reflection and the magnitude of the estimated reflection for the estimated load inductance for a plurality of frequencies. Accordingly, the ports of the vector network analyzer are calibrated to correct a measurement at the ports for an effect of the one estimated load inductance value.

Claims20

Dependent claims

A method of calibrating ports of a vector network analyzer (VNA), comprising:

determining a magnitude of an expected reflection for a reflection standard, wherein the expected reflection for the reflection standard is crosstalk corrected;
estimating a plurality of load inductance values for a load;
calculating a magnitude of an estimated reflection for each of the plurality of estimated load inductance values, wherein the estimated reflection for each of the plurality of estimated load inductance values is crosstalk corrected;
determining a difference between the magnitude of the expected reflection for the reflection standard and the magnitude of the estimated reflection for each of the estimated load inductance values;
selecting one load inductance value that minimizes a sum of the difference between the magnitude of the expected reflection for the reflection standard and the magnitude of the estimated reflection for the estimated load inductance for a plurality of frequencies;
and
calibrating the port of the vector network analyzer to correct a measurement at the port for an effect of the one estimated load inductance value.

4 more elements

A computer device configured to calibrate ports of a vector network analyzer (VNA), comprising:

one or more processors;
a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium is configured to store computer executable instructions and wherein the non-transitory computer readable storage medium is operably associated with the one or more processors such that, in response to executing the computer executable instructions, the one or more processors are configured to:
determine a magnitude of an expected reflection for a reflection standard, wherein the expected reflection for the reflection standard is crosstalk corrected;
estimate a plurality of load inductance values for a load;
calculate a magnitude of an estimated reflection for each of the plurality of estimated load inductance values, wherein the estimated reflection for each of the plurality of estimated load inductance values is crosstalk corrected;
determine a difference between the magnitude of the expected reflection for the reflection standard and the magnitude of the estimated reflection for each of the estimated load inductance values;
select one load inductance value that minimizes a sum of the difference between the magnitude of the expected reflection for the reflection standard and the magnitude of the estimated reflection for the estimated load inductance for a plurality of frequencies;
and
calibrate the port of the vector network analyzer to correct a measurement at the port for an effect of the one estimated load inductance value.

6 more elements

A non-transitory computer readable storage medium that stores computer executable instructions, wherein, in response to one or more processors executing the computer executable instructions, the one or more processors are configured to:

determine a magnitude of an expected reflection for a reflection standard, wherein the expected reflection for the reflection standard is crosstalk corrected;
estimate a plurality of load inductance values for a load;
calculate a magnitude of an estimated reflection for each of the plurality of estimated load inductance values, wherein the estimated reflection for each of the plurality of estimated load inductance values is crosstalk corrected;
determine a difference between the magnitude of the expected reflection for the reflection standard and the magnitude of the estimated reflection for each of the estimated load inductance values;
select one load inductance value that minimizes a sum of the difference between the magnitude of the expected reflection for the reflection standard and the magnitude of the estimated reflection for the estimated load inductance for a plurality of frequencies;
and
calibrate the port of the vector network analyzer to correct a measurement at the port for an effect of the one estimated load inductance value.

4 more elements

Dependencies are inferred from the claim text.

Crosstalk tolerant lrrm auto-load inductance calibration

Life of this patent

Crosstalk tolerant lrrm auto-load inductance calibration

Life of this patent

Abstract

Claims20