On the Estimate Measurement Uncertainty of the Insertion Loss in a Reverberation Chamber Including Frequency Stirring

TL;DR

This paper improves the model for estimating measurement uncertainty of insertion loss in reverberation chambers with frequency stirring, making it applicable under broader conditions and providing a useful upper bound validated by measurements.

Contribution

An enhanced model for measurement uncertainty that does not require strict conditions, applicable across all usable measurement scenarios in reverberation chambers.

Findings

The enhanced model is valid under broader conditions.

A useful majorant for uncertainty is derived and validated.

Measurement results support the proposed model and majorant.

Abstract

In this paper, it is shown an enhancement of a previous model on the measurement standard uncertainty (MU) of the insertion loss (IL) in a reverberation chamber (RC) including frequency stirring (FS). Differently from the previous model, the enhanced does not require specific conditions on the parameter to be measured. Such an enhancement is applicable for all usable measurement conditions in RCs. Moreover, a useful majorant is also shown; it is obtained under a weak condition on the coefficient of variation (CV) of the parameter to be measured. Results by measurements support the validity of the proposed enhancement and of the majorant.