METHOD FOR AMPLITUDE-PHASE MODULATION OF HIGH-FREQUENCY SIGNAL AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2016 - IPC H03C5/00 H03J3/00 

FIELD: radio engineering, communication.

SUBSTANCE: method for amplitude-phase modulation of a high-frequency signal consists in the fact that a signal is supplied to a modulator made of a four-pole circuit, a controlled two-electrode non-linear element, a source of a control low-frequency signal and a load; amplitude and phase of the signal is changed by changing the amplitude of the control low-frequency signal on the non-linear element; the non-linear element is connected to a longitudinal circuit between the high-frequency signal source and the four-pole circuit input, to the output of which the load is connected. The specified relationships of the ratio of modulus and phase of transfer function of the modulator are provided due to selection of dependence of an element of a resistance matrix of the complex four-pole circuit on frequency.

EFFECT: providing modulation of amplitude and phase of a high-frequency signal at the specified dependences of the ratio of moduli and difference of phases of transfer function of the modulator in two states of the controlled non-linear element, which are determined with two levels of a control low-frequency signal, on frequency in the specified frequency band due to optimisation of the scheme and values of parameters of the complex four-pole circuit.

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