Method and system of determining linearity of a power amplifier module in load pull measurements

A system for determining linearity of a power amplifier module (PAM) in load pull measurements comprising:

• an input circuit,
• a PAM operatively coupled to the input circuit on the input side of the PAM,
• an output circuit operatively coupled to an output side of the PAM, wherein the output circuit includes an automated tuner configured to adjust an impedance of the system or the PAM,
• a computing apparatus coupled to the output circuit, the computing apparatus comprising a processor and a memory unit, the processor being operatively coupled to the memory unit, wherein the computing apparatus is configured to:
• receive an input dataset comprising a plurality of load pull parameters;
• process the input dataset comprising the plurality of load pull parameters;
• and;
• produce an output dataset comprising a linearity of the PAM,
• wherein the input dataset is processed by a deep neural network (DNN), and;
• wherein the load pull parameters comprise Pin, Pout, Current, VSWR and Phase, wherein:
• Pin is indicative of the input power to the PAM,
• Pout is indicative of the output power,
• Current is the electrical current during a load pull measurement,
• VSWR is a voltage standing wave ratio,
• Phase is the phase of the current, and wherein the input circuit comprises a vector signal generator, pre amplifier and a directional coupler each coupled in series to define the input circuit.