The article deals with the research and design results of an active electronically scanned antenna (AESA) based on beamforming BiCMOS monolithic integrated circuit (MIC) and patch antenna radiators. The operating frequency band is sub-6 GHz. MIC design is at the stage of transferring files to the manufacture and verification of integrated circuit parameters. In this regard, the current task is the antenna radiators design, that is the main focus of this paper.