An interpolation scheme for precision reflection coefficient measurements at intermediate frequencies. I. Theoretical development

Author

Cox, M.G. ; Dainton, M.P. ; Ridler, N.M.

Author_Institution

Nat. Phys. Lab., Teddington, UK

Volume

3

fYear

2001

fDate

2001

Firstpage

1720

Abstract

The theoretical basis of an objective approach for impedance characteristic interpolation in the development of RF coaxial impedance standards is presented. Variants of the scheme apply to three impedances commonly used to calibrate vector reflectometers and automatic network analysers. The scheme permits impedance standards to be characterised at intermediate frequencies in terms of their values and associated measurement uncertainties

Keywords

calibration; electric impedance measurement; interpolation; least squares approximations; measurement standards; measurement uncertainty; network analysers; reflectometers; reflectometry; RF coaxial impedance standards; automatic network analysers; calibration; constrained polynomial regression; data modelling; fitting functions; impedance characteristic interpolation; intermediate frequencies; interpolation scheme; least squares fitting; measurement uncertainties; model validation; precision reflection coefficient measurement; vector reflectometers; Calibration; Coaxial components; Frequency measurement; Impedance measurement; Interpolation; Laboratories; Measurement standards; Microwave frequencies; Radio frequency; Reflection;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE

Conference_Location

Budapest

ISSN

1091-5281

Print_ISBN

0-7803-6646-8

Type

conf

DOI

10.1109/IMTC.2001.929495

Filename

929495