The ‘Cardiff Model Lite’ is a third order formulation that allows the extension of S-Parameters under Large Signal operation. It is a Polyharmonic Distortion (PHD) based behavioral model formulation, based upon the harmonic superposition principle.
The Cardiff Model Lite measurement suite allows all measurement parameters to be programed and used, to formulate the models described above. The software contains calibration and characterization setups as well as the measurement configuration. During measurements the progress and status is displayed on one easily interpreted screen. The software also allows for control of RF and DC pulse parameters, to allow models to be generated under pulsed conditions.
Once the measurement set is completed, the model is automatically extracted and the results can be viewed within the ‘results’ tab. Models can then be exported as .XNP files for use directly in the simulation environment, or as raw data in a .MDF file for further analysis.