An interpolation scheme for precision intermediate frequency reflection coefficient measurement

Author

Cox, Maurice G. ; Dainton, Mark P. ; Ridler, Nick M. ; Salter, Martin J. ; Young, Paul R.

Author_Institution

Nat. Phys. Lab., Teddington, UK

Volume

52

Issue

1

fYear

2003

fDate

2/1/2003 12:00:00 AM

Firstpage

27

Lastpage

37

Abstract

The theoretical basis and the practical implementation of an objective approach to voltage reflection coefficient (VRC) interpolation in the development of radio frequency coaxial impedance standards are presented. Variants of the scheme apply to three impedances commonly used to calibrate vector reflectometers and vector network analyzers. The scheme permits impedance standards to be characterized in the intermediate frequency (IF) range (where, broadly speaking, IF refers to the frequency range 10 kHz to 100 MHz) in terms of their VRC values and associated measurement uncertainties. The scheme allows the use of commercially available devices (rather than specially constructed calculable devices) as impedance standards with VRC values traceable to national measurement standards. Measurement results are presented which illustrate the capabilities of the scheme.

Keywords

calibration; electric impedance measurement; interpolation; measurement standards; measurement uncertainty; network analysers; reflectometers; voltage measurement; 10 kHz to 100 MHz; calibration; intermediate frequency voltage reflection coefficient interpolation; measurement uncertainty; radiofrequency coaxial impedance standard; vector network analyzer; vector reflectometer; Coaxial components; Frequency measurement; Impedance; Interpolation; Measurement standards; Measurement uncertainty; Radio frequency; Reflection; Standards development; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2003.809101

Filename

1191407