Comparison Between Thermoelectric and Bolometric Microwave Power Standards

Author

Brunetti, L. ; Oberto, L. ; Sellone, M. ; Vremera, E.T.

Author_Institution

Electromagn. Div., Ist. Naz. di Ricerca Metrol., Turin, Italy

Volume

62

Issue

6

fYear

2013

fDate

Jun-13

Firstpage

1710

Lastpage

1715

Abstract

This paper describes a comparison of microwave power standards based on thermoelectric sensors to an analogous standard based on bolometric sensors. Measurements have been carried out with the classical twin-type microcalorimeter, fitted with N-connector test ports suitable for the frequency band 0.05-18 GHz. An appropriate measurand definition is given as being suitable for both standard types. A system accuracy assessment is performed applying the Gaussian error propagation through the mathematical models that interpret the microcalorimeter response in each case. The results highlight advantages and weaknesses of each power standard type.

Keywords

Gaussian noise; bolometers; calorimeters; measurement errors; measurement standards; microsensors; microwave measurement; temperature sensors; thermoelectric devices; Gaussian error propagation; N-connector test port; analogous standard; bolometric sensor; frequency 0.05 GHz to 18 GHz; mathematical model; microwave power standard; system accuracy assessment; thermoelectric sensor; twin type microcalorimeter; Broadband microcalorimeter; microwave measurements; microwave standards; power measurement; thermistors; thermoelectric devices;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2013.2253914

Filename

6502711