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

Published: May 11, 2019

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
Pub Type: Journals

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