RADIO FREQUENCY SIGNAL GENERATOR, COMPRISING SYNCHRONISED FREQUENCY- OR PHASE- AND AMPLITUDE-MODULATION COMPONENTS

摘要

The invention relates to a generator of a phase- or frequency- and amplitude-modulated radio frequency signal (G) comprising a first propagation path (10) for the propagation of the phase- or frequency-modulation component and a second propagation path (20) for the propagation of the amplitude-modulation component between the second input and the output. A frequency discriminator (DISCR) is used to measure a first time period (Tpm) which is a function of the propagation time of the phase- or frequency-modulation component. The invention also comprises means (11 or 21) of measuring a second time period (Tam) which is a function of the propagation time of the amplitude-modulation component. According to the invention, a control unit (CTRL) is used to control the value of a first variable delay (T1) which is introduced into the first propagation path and/or the value of a second variable delay (T2) which is introduced into the second propagation path, according to the difference between the first time period (Tpm) and the second time period (Tam).