Patent ID: 9664718
Date: 2017-05-30
CPC Classifications: G01R

Claim:
1. A method of performing a calibration step and a measurement step in a high speed load pull test system comprising a test setup, wherein the test setup comprises: a device under test (DUT); input driver; output power amplifiers; synchronized signal sources comprising a primary source and at least one secondary source, whereby the primary source injects power, through the input driver, into an input of the DUT, and the at least one secondary source injects power, through the output amplifiers, into an output of the DUT; an input and an output passive impedance tuner; low loss signal couplers inserted between the tuners and the DUT; an automatic wafer probe station, in which the DUT is mounted; a harmonic receiver; a control computer controlling the tuners, the test instruments and the probe station; said system allowing measurement of the incident and reflected power waves at the input and output ports of said DUT, sampled through the couplers and fed into the receiver test ports; whereby the calibration step comprises: whereby the measurement step comprises: