INTERFERENCE SUPPRESSION DEVICE Russian patent published in 2005 - IPC

FIELD: devices in radio engineering systems used for suppression of signals (interferences) fed via the side lobes of the antenna directivity pattern, may be also used in other systems accomplishing the suppression of undesirable signals.

SUBSTANCE: the device has series-connected first auxiliary antenna, complex conjugation device, first multiplier, first sample adder, divider, second multiplier and first subtracter, whose second input is connected to the output of the main antenna, and series-connected main antenna, third multiplier, second sample adder, whose output is connected to the second input of the divider, the second inputs of the first and second multipliers are connected to the output of the first auxiliary antenna, and the second input of the third multiplier is connected to the output of the complex conjugation device. The novelty is in the fact that the device additionally uses the second auxiliary antenna and the second subtracter, the inputs of the complex conjugation device, first and second multipliers are disconnected from the first auxiliary antenna and connected to the output of the second subtracter, whose first input is connected to the output of the first auxiliary antenna, and the second input of the subtracter is connected to the output of the second auxiliary antenna. The output of the first subtracter serves as the output interference suppression device.

EFFECT: enhanced efficiency of device operation.

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