SECONDARY RADAR ANTENNA SYSTEM Russian patent published in 2020 - IPC H01Q21/06 

FIELD: antenna equipment.

SUBSTANCE: invention relates to antenna engineering and can be used in designing antenna systems in secondary radar. Antenna system of the main channel in the form of a phased antenna array consisting of radiating elements has at least one device which enables connection of one or more radiating elements to both the main channel signals and SLS channel signals. Additional technical result is achieved by the fact that except for one (main) device, providing connection to one (or multiple) radiating elements (columns) signals of both main channel and SLS channel signals, introduced is at least one additional device, also providing connection to other or several other radiating elements of both main channel signals and SLS channel signals, also introduced is a unit which generates the required amplitude-phase distribution to form a differential beam pattern of the SLS antenna channel, connected to both said devices, which provide connection to radiating elements of signals of both main channel and SLS channel signals.

EFFECT: increased width of operating frequency band of antenna system, which includes main antenna (antenna of main channel) and separate additional suppression antenna (SLS channel antenna), while maintaining small beamwidth and low level of side lobes RP of main antenna (antenna of main channel), simple design of antenna system, low weight and dimensions; besides, increase in space view speed is achieved.

1 cl, 3 dwg