Automation of S-parameters measurements of high-power microwave transistors in a contact device with tunable strip matching circuitsVladimir Evseev, Mikhail Ivlev, Elena Lupanova, Sergey Nikulin, Vitaliy Petrov and Andrey TerentyevITM Web Conf., 30 (2019) 11002DOI: https://doi.org/10.1051/itmconf/20193011002