BROADBAND "ANTENNA-DOME" SYSTEM Russian patent published in 2014 - IPC H01Q1/42 

FIELD: physics, navigation.

SUBSTANCE: invention relates to antenna feeder devices, primarily to broadband "antenna-dome" systems. The broadband "antenna-dome" system includes a direction-finding linearly polarised antenna, a mechanism for turning the antenna towards a target and a dome in form of a cap with a bulging surface and a single-layer wall, equipped with an assembly for rigidly mounting to an aircraft, wherein the polarisation plane of the antenna coincides with the direction-finding plane, and in the radiotransparent zone either the outer surface of the cap is in form of a logarithmic spiral, the pole of which coincides with the centre of rotation of the antenna, and the inner surface of the cap is selected to be congruent to the outer surface, or the outer and inner surfaces of the cap are non-congruent and are in form of logarithmic spirals with poles which coincide with the centre of rotation of the antenna.

EFFECT: high transmission coefficient electromagnetic waves and fewer direction-finding errors in the "antenna-dome" system in a wide frequency band.

35 dwg, 3 tbl