Phase modulator

摘要

P the invention relates to the circuits of the phase modulation. A phase modulator produces a phase modulation according to the cosine function arc of a modulating signal, with the aid of a circuit 10, which calculates the arc of a hyperbolic tangent function of the input signal of a circuit 20 which modulates a carrier signal with a sum of two signals in quadrature exponential related to the output signal of the circuit 10, and a circuit 30 which carries out a limitation abrupt, and a filtering of the modulated signal. / p & & p & application to the amplifiers interferometric of high frequency signals modulated in amplitude. / p