CONICAL SPIRAL ANTENNA AND METHOD OF ITS MANUFACTURING Russian patent published in 2020 - IPC H01Q11/08 H01Q1/36 

FIELD: antenna equipment.

SUBSTANCE: invention relates to antenna engineering, particularly, to conical spiral aerials of spacecrafts. Antenna comprises two equiangular spiral radiators made in the form of tapes, and a balancing device located along the antenna axis and made in the form of a round coaxial waveguide, at the end of which there are two output conductors. Narrow ends of emitters are electrically connected to outlet conductors of balancing device, and wide ends - to edge of circular electroconductive disc. Output conductors of the balancing device are formed by two longitudinal slots arranged symmetrically on external conductor of the balancing device. Between the end of one of the output conductors and the end of the inner conductor of the coaxial waveguide there is an electrically conducting jumper. Outer conductor of balancing device, spiral radiators and disc are made in form of single part made by additive technology by layer-by-layer laser fusion.

EFFECT: simple manufacturing process and shorter manufacturing time of the antenna, as well as higher reliability of antenna operation.

6 cl, 12 dwg