DocumentCode
1359952
Title
Comparison between the ripple technique and the direct calibration method for characterisation of directional devices
Author
Rodriguez, M.
Author_Institution
RF Stand. Lab., Inst. Nacional de Tecnica Aeroespacial, Madrid
Volume
147
Issue
4
fYear
2000
fDate
7/1/2000 12:00:00 AM
Firstpage
196
Lastpage
201
Abstract
A comparison between two different methods for measurement of directivity and test port match of directional couplers and bridges is presented. One of them, the popular ripple technique, is scalar. The other method, the so-called direct calibration method as derived by Juroshek (1997), with slight differences for the simultaneous measurement of both parameters, is vectorial. The two methods make use of a vector network analyser (VNA) and the calibrations performed are verified against known standards. The uncertainty associated with both techniques is computed
Keywords
calibration; directional couplers; measurement standards; measurement uncertainty; network analysers; bridges; direct calibration; directional couplers; measurement standards; measurement uncertainty; ripple technique; scalar technique; simultaneous measurement; vector network analyser; vectorial technique;
fLanguage
English
Journal_Title
Science, Measurement and Technology, IEE Proceedings -
Publisher
iet
ISSN
1350-2344
Type
jour
DOI
10.1049/ip-smt:20000504
Filename
852296
Link To Document