Accuracy assessment of the scalar network analyzer using sliding termination techniques

In the absence of phase response the major, if not the primary, sources of error in the scalar network analyzer are the imperfect directivity, etc., associated with its internal and frequently inaccessible test set or measurement network. An explicit expression is obtained for this error in terms of the observed response to a sliding termination and sliding short. This has made possible a more complete error expression than would have otherwise been obtained