Statistical modelling of characteristics of controlled attenuator with phase shift invariant with respect to the introduced attenuation

The regularities of designing of electrically controlled attenuator which phase-shift frequency characteristic is invariant with respect to amplitude-frequency one are detected. It is shown that in the design of controlled devices with variable conditions it is necessary to detect the factor loadings separately influencing upon phase shift and introduced attenuation. It enables to simplify the phase equalization parameters optimization by making it independent of search for optimal control law of elements with controllable resistance. It makes the solution more globally optimal.