METHOD OF HIGH-FREQUENCY SIGNAL AMPLITUDE AND PHASE MODULATION AND DEVICE FOR IMPLEMENTATION THEREOF Russian patent published in 2018 - IPC H03C5/00 

FIELD: radio engineering and communications.

SUBSTANCE: invention refers to radio communications. Essence: a high-frequency harmonic signal is supplied to a modulator made of a four-terminal network, a two-pole controlled element connected to a low-frequency control signal source. Four-terminal network is made of two-terminal networks, not less than two, the parameter values of which are selected from the condition of providing the required amplitude-frequency and phase-frequency characteristics in two states of a controlled element determined by two levels of the low-frequency control signal. Two-pole controlled element is introduced between the signal source and the input of the four-terminal network into a longitudinal circuit. Load with a complex resistance is connected to the output of the four-terminal network. Resistance of the signal source is selected as a complex one. Four-terminal network is selected as a complex one. Dependences of the complex elements of the classical transmission matrix of the four-terminal network on the frequency are selected from the condition of providing the specified phase dependencies ϕ_1,2 and modules m_1,2 of transfer functions on the frequency in the first and second states.

EFFECT: transmission signal amplitude and phase modulation in two states of the controlled element at controlled module and phase of the transfer function in each of the states in a given frequency band.

2 cl, 4 dwg