SCANNING ANTENNA ARRAY

FIELD: radio engineering. ^ SUBSTANCE: proposed scanning antenna array has radiating structure in the form of two-dimensional array of perforated metal disk and flat wavefront source in the form of metal-based insulator layer, as well as insulator layer exciter in the form of open end of flat waveguide with horn-like extension of top end. Radiating structure is disposed in a space relation to insulator layer wall linearly reducing from to from insulator layer exciter toward other end of insulator layer, where m = 0, 1, 2, ...; d is insulator layer thickness; epsilon is dielectric constant of insulator layer. Radiating structure is mounted to turn about its axis perpendicular to its plane, directivity pattern deviation angle being interrelated with radiation structure turn angle alpha by equation = arcsin(lambda)/l)sinalpha), where l is array period from exciter to end of insulator layer at alpha - 0°; lambda is wavelength. ^ EFFECT: enhanced bandwidth of antenna array scanning in wide spectrum, reduced mass and cost of array. ^ 4 cl, 4 dwg