TRANSMITTING ANTENNA SYSTEM WITH PHASED ARRAY

摘要

FIELD: radio engineering. SUBSTANCE: active transmitting antenna system with phased array is intended for simultaneous generation of several independent beams for irradiation of specified regions of space without irradiation of other regions. Dimensions and forms of these regions are determined by dimension and number of elements of array and number of beams is defined by number of beam forming circuits feeding array. All elements of array operate with same level of amplitude and direction and form of beams are determined by phase settings. Active transmitting phase array includes assemblage of antenna elements positioned in the form of hexagon. Each element of antenna includes horn capable of radiation of each signal of two orthogonal polarizations. Horn is excited by multipole band-pass filter meant for passage of signals with frequency in specified band and for suppression of signals of other frequencies. Filter is coupled to air dielectric resonator put on substrate. Air dielectric resonator incorporates monolithic integrated amplifiers with high efficiency with double clock switching on exciting orthogonal SHF signals with the aid of pin in combination with amplifiers arranged so that they excite resonator if placed at angle of 180 deg with reference to one another. Form and direction of beam as well as keeping of amplitudes of signals of all antenna elements at same level are provided by phase inverters and attenuators located on substrate and connected to amplifiers positioned inside resonator. EFFECT: enhanced functional characteristics of antenna system. 5 cl, 5 dwgt