Wideband Large-Signal RF Measurements Applied to Behavioral Model Extraction
Catherine A. Remley, M. Myslinski, Dominique Schreurs, Bart Nauwelaers
This work presents for the first time wideband Large Signal Network Analyzer (LSNA) measurements used to extract a large-signal behavioral model of an RF amplifier. The methodology together with some important issues concerning the data processing is discussed. The procedure is illustrated using an example of a packaged buffer amplifier for wireless applications. We perform qualitative and quantitative analysis of the model's accuracy by means of wideband large-signal measurements and large-signal metrics respectively. Additionally, we compare these results with those obtained by a behavioural model based on narrowband LSNA measurements.