Determination of the Complex Residual Errors of a Calibrated One- Port Vector Network Analyzer Using the Ripple Test

This article present a new method of accuracy verification of calibrated one-port vector network analyzers based on the least mean square algorithm. The method is of particular interest for significantly limited frequency ranges as well as for cost-effective S-parameter measurement systems where the use of conventional ripple test may be impractical and/or relatively expensive. Experimental studies were conducted for few frequency ranges in coaxial measurement environment. Index Terms — accuracy verification; S-parameters; residual error-box; ripple test; least mean square (LMS) algorithm; vector network analyzer.