JOURNAL / ISSUES               ISSN 2310-6697 / ISSN-L 2310-6697

open transactions on independent scientific-engineering research

FUNKTECHNIKPLUS # JOURNAL

Théorie-Expérimentation-Métrologie-Logiciel-Applications

ISSUE 1 - MONDAY 30 SEPTEMBER 2013 - YEAR 1

PAPERS

Attribution 4.0 International License CC BY 4.0

1-3

# Telecommunications Engineering - Métrologie

Measurement Uncertainty in Network Analyzers: Differential Error Analysis of Error Models Part 2: Full Two-Port Calibration

N. I. Yannopoulou, P. E. Zimourtopoulos

ABSTRACT

Since S-parameter measurements without uncertainty cannot claim any credibility, the uncertainties in full two-port Vector Network Analyzer (VNA) measurements were estimated using total complex differentials (Total Differential Errors). To express precisely a comparison relation between complex differential errors, their differential error regions (DERs) were used. To demonstrate the method in the most accurate case of a direct zero-length thru, practical results are presented for commonly used Z-parameters of a simple, two-port, DC resistive T-network, which was built and tested against frequency with a VNA measurement system extended by two lengthy transmission lines.

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