PARABOLIC ANTENNA FEED Russian patent published in 2006 - IPC H01Q3/18 H01Q19/10 

FIELD: antenna engineering.

SUBSTANCE: proposed feed of parabolic antenna is designed for use in communication and television reception systems of ground and satellite radio lines. Metal ring of radius equal to 0.4λ_max < R < 0.5λ_max and width b = 0.1λ_max is installed between orthogonal dipoles and cross-like subdish at distance h from the latter on cylindrical rod and disposed on top of radio-transparent shielding casing. Distance h is varied within the range of 0.35λ_max < h < 0.55λ_max when tuning antenna to gain maximum depending on geometrical dimensions of mirror.

EFFECT: ability of adapting to various mirrors and controlling directivity pattern; enhanced gain of antenna due to more comprehensive use of mirror.

1 cl, 2 dwg