An 18 to 26.5 GHz Waveguide Load-Pull System Using Active-Load Tuning

An 18 to 26.5 GHz waveguide load-pull system using active-load tuning capable of measuring devices with high load reflection coefficients has been designed and constructed using standard waveguide components. The system and its application to the large-signal characterization of GaAs FETs and and amplifiers at 26 GHz will be presented.