METHOD OF FORMING BEAM PATTERN OF DOUBLE-RING DIGITAL PHASED ANTENNA ARRAY Russian patent published in 2016 - IPC H01Q3/00 G01S3/14 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to antenna systems with electronic beam control and use of annular digital phased antenna arrays in mobile and stationary communication equipment. A method of forming the beam pattern of a double-ring digital phased antenna array includes: digitally processing a microwave signal; generating control signals in accordance with data of the required beam pattern and transmitting to exciting signal emitters with an amplitude-phase distribution defined in accordance with a selected criterion; the amplitude A_nm and phase φ_nm of the exciting signals are determined by minimising the function F of the mean-square deviation of the formed beam pattern R(φ) from a given distribution E(φ) of the radiation field of the antenna array, characterised by the lowest side lobe level with a given width of the main lobe, wherein the value of the amplitude A_nm is not greater than 1.

EFFECT: forming a beam pattern with the required side lobe level.

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