Measurements of time-domain voltage/current waveforms at RF and microwave frequencies based on the use of a vector network analyzer for the characterization of nonlinear devices-application to high-efficiency power amplifiers and frequency-multipliers optimization. - Denis Barataud; Caroline Arnaud; Barbara Thibaud; Michel Campovecchio; Jean-Michel Nebus; Jean Pierre Villotte (IEEE Trans. Instrum. Meas., 1998)