Golovin V. Irradiation system construction methods of hybrid reflected antenna

Object - dispersion and radiation of a circular polarizised field in the hybrid-reflector antenna (HRA); purpose - development of the HRA with a broadband irradiating system represented by a few elements array of spiral irradiators; methods - vector potential method, geometry-optical approximation method, current method; results - the new method of HRA irradiating system construction designed, the expressions for the magnetic field components shaped by the array of spirals near to the reflector are obtained, the expressions for the HRA radiation field com-ponents are obtained, in which the geometry of spirals, their quantity and arrangement in the array are taken into account, the effective corrective action method of a current density distribution on the main reflector designed, the problems of a reflector shading and response to a reradia-tion reduction are in the new fashion solved, thus the HRA frequency properties are improved, the program of the HRA radiation characteristics calculation designed;innovation - the mathematical model of the HRA with a feed array of spirals designed, dependences of the current density distribution on the reflector surface from geometry of spirals and their quantity for the first time are established and as from going round and the displacements of spirals supply points in the array are established, depen-dences for the HRA radiation characteristics from a complex of parame-ters circumscribing the array of spirals are established; level - the ob-tained results can be used at HRA irradiating systems, usage sphere - research and development institutes, research-and-production associa-tions.