Extended cross-ratio reflection correction at microwave frequencies using waveguide air-lines

Author

Stumper, Ulrich

Author_Institution

Phys. Tech. Bundesanstalt, Braunschweig, Germany

Volume

50

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

364

Lastpage

367

Abstract

It is shown that the extended cross-ratio method of correction of the complex reflection coefficient Γ is applicable not only in coaxial lines but also in waveguides at microwave frequencies when precision waveguide sections of well-defined cross dimensions are used as reference air-line impedance standards. A detailed uncertainty calculation which includes the influence of waveguide imperfections is given. Small total expanded uncertainties less than 0.002 for |Γ|⩽0.25 can be achieved

Keywords

coaxial cables; electric impedance measurement; measurement uncertainty; microwave reflectometry; network analysers; rectangular waveguides; transfer standards; waveguide discontinuities; VNA; coaxial lines; complex reflection coefficient; extended cross-ratio reflection correction; microwave frequencies; precision waveguide sections; rectangular waveguides; reference air-line impedance standards; uncertainty calculation; waveguide air-lines; waveguide imperfections; Circuit testing; Coaxial components; Electrochemical machining; Impedance measurement; Measurement standards; Microwave frequencies; Microwave measurements; Millimeter wave measurements; Optical reflection; Planar waveguides;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.918143

Filename

918143