About Different Load Configurations for Mixed-Mode Load-Pull Measurements
David Veit, Michael Gadringer, Erich Leitgeb · European Microwave Conference · 2019
In recent years several distinct methods for mixed-mode load-pull measurements have been proposed. These methods use different ways of connecting impedance tuners to the device under test. In this contribution three of these approaches are analysed analytically and compared to each other. One of them is proposed, for the first time, in this paper. Measurements with a physical device using a passive real mixed-mode load-pull measurement system were carried out to support the analytical findings. The analysis shows the limitations, benefits and disadvantages of each considered method. The new method is able to increase the tuning range of passive load-pull systems in exchange for more complicated tuning.