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Management of flat active phased array

DOI 10.18127/j15604128-201807-07


N.V. Povarenkin – Ph.D.(Eng.), Associate Professor, Head of Department, Saint-Petersburg State University of Aerospace Instrumentation
A.V. Volodyagin – Ph.D.(Eng.), Associate Professor, Saint-Petersburg State University of Aerospace Instrumentation
A.A. Homenko – Ph.D.(Eng.), Associate Professor, Department of Radio Systems, Saint-Petersburg State University of Aerospace Instrumentation
E.V. Silyakov – Ph.D.(Eng.), Associate Professor, Saint-Petersburg State University of Aerospace Instrumentation

The article describes a variant of control of flat receiving-transmitting digital antenna arrays. Due to a number of difficulties associated with the full transition to the digital formation of the radiation pattern in radar stations, there is a need to reduce the amount of data to be digitally processed. The most acceptable option in this case is a «hybrid» method of forming a radiation pattern.
The relevance of the article is not in doubt, since the proposed version of controlling the maximum of the radiation pattern allows si-multaneous conversion of the operating frequency and the fulfillment of the synchronization condition at the intermediate frequency by controlling the phase distribution in the heterodyne path. Of particular interest is the possibility of ensuring the constancy of all frequencies involved in the transformation and simultaneous independent control of the phase distribution for any position of the beam radiation pattern. The control of the proposed version of the beam position control of the radiation pattern is based on the method of nonlinear diffraction phasing used for phasing of analog large-aperture phased antenna arrays, including non-rigid ones.
The variant of control of the beam position of the digital antenna array radiation pattern proposed by the authors is aimed at reducing the consumed energy characteristics, as well as the total cost of digital antenna systems and the possibility of implementing digital diagram formation schemes on the domestic electronic component base.

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