FIELD: antenna equipment.
SUBSTANCE: antenna cover (AC) relates to UHF radiotechnics and is intended for covering of mirror antenna systems of radioelectronic devices against unfavorable effect of environment. AC consists of base and standard elements of triangular or segment configuration, made of radiotransparent material and fixed to each other in form of hemisphere. At the same time in the hemisphere parallel to the base there installed are two disks from the radar absorbent material, one of which is installed at the level of the lower edge of the aperture of the covered mirror antenna, and the second one – at the level of the upper edge of the aperture of the covered mirror antenna, at that discs edges are rounded, bottom edges are down, and top edges are upwards. At that radius and height of rounding do not exceed five wave lengths while removal of rounds from corresponding edges of antenna aperture makes at least fifteen wave lengths.
EFFECT: improved characteristics of noise immunity, electromagnetic compatibility and spatial selection of signals of radioelectronic devices.
1 cl, 4 dwg
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Authors
Dates
2019-09-04—Published
2018-10-15—Filed