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NIST-Traceable Microwave Power Measurement in Waveguide Calorimeter with Correlated Uncertainties

Published

Author(s)

Dazhen Gu, Xifeng Lu, Benjamin F. Jamroz, Dylan F. Williams, Xiaohai Cui, Aric W. Sanders

Abstract

To realize microwave power traceability, we apply a newly developed calibration technique for measuring the correction factor of a calorimeter with a vector network analyzer in the WR-15 frequency band. The wave-parameter approach is used to formulate analytic expressions for the correction-factor and effective-efficiency. This allows us to systematically track the uncertainty with correlation along an unbroken path. Measurement results are consistent with what was previously obtained by use of the conventional method.
Citation
IEEE Transactions on Instrumentation and Measurement

Keywords

Microcalorimeter, microwave power, traceability, uncertainty correlation, vector wave parameter. Microcalorimeter, microwave power, traceability, uncertainty correlation, vector wave parameter.
Created May 11, 2019, Updated May 13, 2019