STATIONARY ANTENNA FOR RADIOLOCATOR OF CIRCULAR SCAN AND TRACKING Russian patent published in 2010 - IPC H01Q3/00 

FIELD: radio engineering.

SUBSTANCE: stationary antenna is made in the form of active circular (AC) phased array (PA), comprises circulators (C), transceiving modules, dividers-summators and transceivers. PA AC consists of three segments that generate three beams at the angle of 120° to each other, every of which comprises N flat active phased subarrays, which represent radiolocating modules (RLM), arranged tightly to each other along outer circular surface of antenna. Each RLM comprises 21 antenna elements (AE), which, through according C are connected to according transceiving cell (TC), transmitter and receiver of which comprises electrically controlled phase changers and are connected accordingly to inlet of transmitting track and output of receiving track of TC, inputs/outputs of all TC are connected by means of divider/summator with according input/output of RLM. Quadrature outputs of receiver in each RLM are connected to according analog-to-digital converters, outputs of which are connected to inputs of processor arranged with the possibility to digitally both generate three pairs of summary-differential directional patterns of circular array.

EFFECT: improved distance and accuracy of coordinates generation that are detected and accompanied by radiolocator of targets.

6 cl, 2 dwg