Magic Source Pull
Because the a- and b-waves of the DUT are measured at the DUT reference plane, it is possible to measure the large signal input impedance of the device. With this information and through a patent-pending technique, it is possible to simulate the effect of matching the source of the device without having ever varied the source impedance. This "virtual source matching" is highly reliable at even extremely mismatched conditions, and allows for simulated source contours to be drawn. Trade-offs between maximum gain, efficiency and other parameters can be viewed in real-time without multiple source pull load pull iterations.
Magic Source Pull (red curve) predicts identical response as measured source impedance (olive-colored) gain compression curve (two curves are completely overlapping)
Magic Source Pull (red curve) predicts identical response as measured source impedance (turquoise-colored) gain compression curve (two curves are completely overlapping)