Etude des microcircuits hyperfréquences en régime dynamique

A critical study of the transmissionlinematrix method has been carried out by the authors to apply it for a dynamical study of the microwaves microcircuits. As a consequence of this critical study the authors suggest important improvements on the following three points: the dynamical process initialization, the rapidity and precision of computer calculation, the treatment of the resulting time signal. The method being a dynamical one, a first selecting filtering of the information to be transmitted is performed by using the geometrical and electrical symetries. A fast Fourier transform and a simplification of the computation procedure give a gain in time and precision. At last a better reading of the frequency response spectra is obtained by treating with various windows of convolution the resulting time signal.