MONOPULSE PELENGATOR WITH COMBINED ANTENNA DEVICE Russian patent published in 2017 - IPC G01S13/44 

FIELD: radio engineering, communication.

SUBSTANCE: monopulse direction finder with a combined antenna device comprises a two-mirror antenna with excitation of the active phased array antenna, the elementary feeds which are connected to the antenna input-output multi-channel transceiver, the signal outputs of which are connected to respective inputs of a multi-channel device digital conversion and the formation of a sum-difference signals also contains a pathogen-oscillation synthesizer reference and control electronic computer (PC). The multi-channel transceiver consists of four transceiver modules, each comprising three receive-transmit switches, a mixer, a power amplifier whose input through the preamplifier is connected to the first output of the first receive-transmission switch, and the output is connected to the first input of the second receive-transmit switch, The second input-output of which forms the antenna input-output of the transceiver module, and the output through a series-connected protection device, a low-noise amplifier and an amplifier -frequency connected to the second input of the third transmit-receive switch having a first input constituting the input of the excitation signal at the intermediate frequency transceiver module, and the output is connected to the second input of the mixer, the output of which is connected to the input of the first receive-transmission switch, the second output of which forms the signal output of the transceiver module, in addition, the reference-oscillator includes a reference oscillator to the output of which a sampling frequency driver is connected whose output is connected With the corresponding input of the multichannel digital converter and the formation of the sum-difference signals, the oscillator of the local oscillator frequency, to the output of which n The first inputs of mixers of all transceiver modules are connected, and the intermediate frequency driver, to the output of which the first inputs of four quadrature amplitude modulators, the information inputs of which and the information input of the oscillator of the local oscillator are connected to the first output of the control computer, the outputs of the quadrature amplitude modulators are connected to the first inputs of the third receive-transmit switches of the respective transceiver modules, and the input of the reference signal of the multichannel digital- Sum-difference signals, control inputs of the switches are connected to the third output of the control computer -transmission of the transceiver modules, and to the fourth - the control input of the antenna device.

EFFECT: increase the speed and accuracy of bearing determination.

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