FIELD: electricity.
SUBSTANCE: invention relates to antenna technology, namely to active phased antenna arrays (APHAA) with digital generation and control of the direction pattern. Device comprises: radiator, low-noise amplifier, mixer, intermediate-frequency amplifier, spectral component filter, group of M-filters for the broadband spectrum division into narrowband spectra, group of M dividers into two directions, 90 °constant phase shifter, two groups of synchronous phase detectors, each of which contains M detectors, two groups of analog-to-digital converters (ADC), each of which contains M ADC, digital complex coefficient shaper, two groups of digital complex multipliers, each of which contains M multipliers, two digital adders outputs of which are the outputs of the receiving module, wherein the second input of the mixer and the input of the constant phase shifter are connected to the outputs of the first and second APHAA heterodynes respectively, control inputs of the ADC are connected to the output of the APHAA clock-pulse generator, and the input of the digital complex coefficient shaper is connected to the output of the APHAA beam control system.
EFFECT: simplified design, increased efficiency coefficient and increased accuracy of the direction pattern control.
1 cl, 1 dwg
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Authors
Dates
2019-06-24—Published
2017-10-19—Filed