EMBEDDED CONTROL METHOD OF CHARACTERISTICS OF PHASED ANTENNA ARRAY Russian patent published in 2008 - IPC G01R29/10 

FIELD: radio technology.

SUBSTANCE: invention pertains to radar measurements and can be used for controlling characteristics of direction pattern of a phased antenna array (PHAA) with discrete control of phases of the exciting current of emitters using p-bit semiconductor phase shifters. The essence of the invention lies in that, to determine characteristics of the direction pattern of a PHAA, low frequency control is carried out at the same time as microwave control. For this, the opening of the PHAA is broken into J squares with sides equal to within a circle with radius 4λ-m',n'.The emitters are randomly controlled as well as control channels adjacent to them, numbered and which are centres of the described circles. If as a result of microwave control of these emitters, the A_0i parameters are less than their standard values A_sti, then successive microwave control is carried out and the amplitude and phase of the exciting currents are stored as well as coordinates m, n (where m is a number of rows, n is a number of columns) of emitters, located on the j-circle with radius 4λ. With defined coordinates m', n^' of emitters, characterising the least difference between parameters A_sti and A_0i, microwave control of the amplitude and phase of emitter exciting currents is carried out for emitters on a circle with radius 4λ and centre at a point with coordinates m', n'. These emitters would have not undergone microwave control in the preceding procedure.

EFFECT: increased reliability of controlling characteristics of a direction pattern of a phased antenna array.

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