REFLECTOR ANTENNA FEED WITH HOLLOW NEAR-FIELD COUNTER-REFLECTOR HOLDER Russian patent published in 2024 - IPC H01Q19/00 

FIELD: antenna equipment.

SUBSTANCE: invention relates to antenna engineering and is intended for use in reflector antennae. Result is achieved by the fact that reflector antenna feed with hollow holder of near-field counter-reflector is proposed, consisting of circular waveguide, radiator with external corrugation, counter-reflector located opposite end of circular waveguide, two dielectric inserts and a metal rod, characterized in that the first dielectric insert has the shape of a hollow cylinder installed in the groove of the counter-reflector on one side and in the groove on the end of the radiator on the other side, and the second dielectric insert is located inside the emitter and rests against the protrusion of rectangular section, which prevents the movement of this insert towards the counter-reflector, wherein the metal rod consists of two parts, the first part passes through the inner hole of the second insert, and the second part has a larger diameter and rests against the second dielectric insert on the side of the round waveguide.

EFFECT: simplified design of counter-reflector attachment to emitter and increased air-tightness of radiator.

1 cl, 5 dwg