METHOD FOR JOINT SHAPING OF ZEROES IN SUM AND DIFFERENCE DIRECTIVITY PATTERNS OF SINGLE-PULSE ANTENNA ARRAYS

摘要

FIELD: antenna engineering. SUBSTANCE: method involves weighing signals received by each radiator, separating them into two channels, summing up signals received from like outputs of dividers with respective progressively growing and reducing phase shift ensuring deflection of each beam over common coordinate through ±&Dgr;U, where +U is distance of maximums of beams to equisignal direction, followed by shaping sum and difference directivity patterns. Weight coefficients of signals received by each radiator are chosen to equal algebraic sum of weight coefficients for particular radiator providing for shaping main directivity pattern with maximum oriented towards U_o and four directivity patterns compensating for every noise acting in direction of U_n; two of these patterns should be oriented, respectively, toward and two other ones should be symmetrical mirror images of the former relative to equisignal direction and oriented, respectively, toward ; equal weights are chosen for symmetrical pairs of compensating directivity patterns. EFFECT: improved accuracy of orienting equisignal direction in shaping zeroes in directivity pattern of single-pulse phased antenna arrays. 4 dwg