Comparing Different Theoretical Designs of Six-Port Reflectometer Junctions

摘要

This memorandum presents a derivation of numerical procedures for comparing different theoretical designs of six-port junctions for use in measuring the voltage reflection coefficient of passive loads. It shows from these that the maximum uncertainty in measuring any passive load can be minimised by a suitable choice of components, in each of four different designs, and discusses the relative merits of these designs in terms of selecting a best compromise for use in a dual six-port network analyser.