Impedance synthesis algorithms for hybrid harmonic load pull

This document presents a hybrid harmonic load pull system and the associated impedance synthesis algorithms. Specifically, these algorithms are used to combine passive harmonic impedance synthesis using electromechanical tuners with open loop active injection to present a combined hybrid load impedance to a device under test (DUT). The key advantage of said algorithms is that they allow any DUT impedance to be matched with a minimum of injected power.