Physical Models and Dimensional Traceability of 2.4 mm Coaxial Airline Standards for Determining Systematic Uncertainties of Calibrated Scattering-Parameters

Published

July 6, 2023

Author(s)

Jeffrey Jargon, Dylan Williams, Angela Stelson, Chris Long, Aaron Hagerstrom, John R. Stoup, Eric S. Stanfield

Abstract

In this report, we document the models and dimensional traceability of our 2.4 mm coaxial airline standards for performing multiline thru-reflect-line calibrations up to 50 GHz using vector network analyzers. We identify the equations used in our models of the transmission-line standards and present a method for determining a coaxial line's metal conductivity using a closed-form solution relating it to the propagation constant. Next, we provide details of the traceable dimensional measurements and associated uncertainties of our 2.4 mm airline standards. And finally, we describe how our software, the NIST Microwave Uncertainty Framework, is used to implement physical models of calibration standards and propagate these systematic uncertainties to the calibrated scattering-parameters of a device under test. We include a measurement example for illustrative purposes.

Citation

Technical Note (NIST TN) - 2255

Report Number

2255

NIST Pub Series

Technical Note (NIST TN)

Pub Type

NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.TN.2255

Local Download

Keywords

airline standards, coaxial, dimensional, physical models, scattering-parameters, systematic, traceability, uncertainties

Citation

Jargon, J. , Williams, D. , Stelson, A. , Long, C. , Hagerstrom, A. , Stoup, J. and Stanfield, E. (2023), Physical Models and Dimensional Traceability of 2.4 mm Coaxial Airline Standards for Determining Systematic Uncertainties of Calibrated Scattering-Parameters, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.2255, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936633 (Accessed January 19, 2025)