SU1483590A1 - Control circuit ofelectromagnetic wave polarization - Google Patents

Abstract

The invention relates to microwave technology and can be used in radar systems and information transmission systems. The aim of the invention is the interdependent control of the polarization diagram (PD) parameters and enhancement of functionality by expanding the set of modulation functions for these parameters, as well as ensuring a linear relationship between the PD orientation angle and its control signal. The device contains the master r-1, the phase-shifter 2 of the signal by 90 °, two multipliers 3.4, the former 10 spatial interposition of waves, two amplifiers 12 and 13 of power. To achieve the goal, multipliers 5 and 6, inverter 7, two adders 8.9, and tangent calculation unit 11 are introduced into the device. 1 hp ff, 1 ill.

Description

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The invention relates to microwave technology and can be used in radar systems and information transmission systems.

The aim of the invention is the interdependent control of the parameters of the polarization diagram and the extension of functionality by expanding the set of module functions for these parameters, as well as ensuring a linear relationship between the orientation angle of the polarization diagram and its control signal.

The drawing shows a block diagram of a device for controlling the polarization of an electromagnetic wave.

The device for controlling the polarization of the electromagnetic wave contains the master oscillator 1, the phase shifter 2 of the signal by 90 °, the first-fourth multipliers 3-6, the inverter 7, the first and second adders 8 and 9, the driver 10 of the spatial position of the waves, tangent calculation unit 11, two power amplifiers 12 and 13.

The device for controlling the polarization of the electromagnetic wave works as follows.

The microwave signal of the master oscillator 1 U co-scot is fed to the inputs of the phase shifter 2, the first multiplier 3 and the first adder 8. The signal Ug, which controls the ellipticity coefficient, is fed to the input of the inverter 7 and the first input of the fourth multiplier 6, and the signal Ug, which controls orientation of the polarization diagram, through the block 1 1 goes to the second input of the first multiplier 3 and to the second input of the fourth multiplier 6. The voltage U UUU @f from the output of the fourth multiplier 6 is fed to the second input of the second multiplier 4, from the output of which takes off with signal U4 -UrU6 (sincot, added in the first adder 8 with the microwave signal of the master oscillator 1.

The signals multiplied by the third multiplier 5, sincot (coming from the output of the phase shifter 2) and -U g (from the output of inverter 7) in the second adder 9, are added to the signal obtained by multiplying in the first multiplier 3 signals Ue. and soscot. As a result, the output signals of the first and second adders

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8 and 9 are fed to the shaper 10, the output of which produces inter-orthogonal in space microwave signals coscot - Urll & 1sincot HU6lcoscot + + Ursincot The values of the control signals U r and U 0 determine the polarization parameters of the received electromagnetic wave - Ellipticity coefficient and orientation angle, respectively. Amplifiers 12 and 13 amplify in power signals taken from the outputs of the first and second adders 8 and 9, respectively, without changing their appearance.

Claims (2)

1. A device for controlling the polarization of an electromagnetic wave, containing a master oscillator, the output of which is connected to the first input of the first multiplier, a phase shifter of 90 °, a second multiplier, and a spatial interposition generator of the waves, the output of which is a device output that differs from , in order to mutually control the parameters of the polarization diagram and extend the functionality by expanding the set of modulation functions for these parameters, further the inverter, the third and fourth multipliers, the first and second adders, the outputs of which are connected to the corresponding inputs of the spatial interposition of the waves, the first input of the first adder directly, and the second input through the series-connected phase shifters through 90 ° and the second multiplier are connected to the output of the master oscillator, the output of the phase shifter is 90 ° also connected to the first input of the third multiplier, the output of which is connected to the first input of the second adder, the second input of the second sum The mathor is connected to the output of the first multiplier, the second input of which, connected to the second input of the fourth multiplier, is the input of the control signal for the orientation angle of the polarization diagram, to the second input of the third multiplier is connected the output of the inverter, whose input connected to the first input of the fourth multiplier, is the input of the ellipticity control signal. the polarization diagram, the output of the fourth multiplier is connected to the second input of the second multiplier. 2. The device according to claim 1, characterized in that, for the purpose of to ensure a linear relationship between the orientation angle of the polarization diagram and its control signal, a tangent calculation unit is introduced. the input of which is the input of the control signal of the orientation angle of the polarization diagram and the output is connected to the second inputs of the first and fourth multipliers