Circuit for amplitude and phase modulation of carrier signal by two respective input signals

An electronic arrangement for generating an amplitude and phase-modulated carrier signal, said arrangement comprising a phase modulation stage having first and second inputs for receiving two respective modulation signals, said modulation stage being under the control of the modulation signals and generating in use two different phase-modulated signals having the same carrier frequency and substantially the same amplitude, and an output stage to which said phase-modulated signals are applied for assembling by means of summation of said phase-modulated signals to produce said amplitude and phase-modulated carrier signal the amplitude of which is modulated in dependence on the phase difference of said phase-modulated signals and the phase of which is modulated in dependence on the sum of the phases of said phase-modulated signals.