CONTROL MODE OF AMPLITUDE-PHASE DISTRIBUTION IN PHASED ARRAY APERTURE Russian patent published in 2008 - IPC H01Q3/26 

FIELD: physics.

SUBSTANCE: invention can be used for control of amplitude-phase distribution (APD) in phased array aperture (PA) with discrete regulation of radiating excitation current phases using p-digit semiconductor phase shifters. Invention implies that within control of amplitude-phase distribution in PA aperture using conventional method including operating control of amplitude-phase characteristics of radiating PA detecting co-ordinates i-x of radiators m, n (where N is number of PA columns, and m is number of PA lines), with decreased amplitudes of excitation currents, and co-ordinates of faulty p-digit phase shifters, numbers of faulty switching elements thereof and fault types (breakages or short circuits), as well as decreased excitation current amplitudes of damaged PA radiators and calculation of rate value of signal level PA-radiated within preset direction, for 2^P events of simultaneous state change of all its p-digit phase shifters by switching resolution value ϕ in consideration of control data of excitation current phase of each m, n PA radiators ⊘_rad (m, n). Then PA phase shifters are regulated to states corresponding to maximum of 2^P calculated values of radiated signal level, in combination with control of amplitude-phase characteristics of i-x PA radiators to detect values of excitation current amplitudes decrease ΔA_i used to detect command code for control of excitation current amplitudes of i-x PA radiators Acontrol_i with active control paths, connected between i PA radiators and phase shifters at decrease in excitation current amplitudes by value exceeding ΔA/2 (ΔA is control resolution of excitation current amplitudes of i radiator with active control path connected), and at calculation of rate values of signal level of PA radiated within preset direction considered are along with excitation current phases of radiators ⊘_rad (m, n) as well as compensation values of amplitudes decrease in i radiators Acontrol_i=Ent [(ΔAi/ΔA) +0,5] ΔA.

EFFECT: extended application range

1 dwg, 1 tbl