| 摘要 |
FIELD: antenna engineering; spacecraft on-board antenna-feeder assemblies. ^ SUBSTANCE: proposed spacecraft antenna-feeder assembly has antennas disposed in diametric opposition to external diameter of spacecraft hull and integrated by feeder system incorporating radio-frequency feeders and power splitters connected to on-board radio system; each antenna has axially symmetric funnel-shaped directivity pattern whose opening angle is regulated by spacecraft flight path. Directions of axial minimum value of directivity pattern of antennas are combined with central direction of sector of communication angles with equipped ground measuring station during oriented flight of spacecraft; installed in immediate proximity of antennas and inserted in feeder system are radio-signal amplifiers. Antenna-feeder assembly for high-power and large-size spacecraft incorporates provision to adapt its power characteristics to spacecraft altitude changes in space, including equally probable spacecraft position in space. ^ EFFECT: enlarged functional capabilities of antenna-feeder assembly. ^ 3 cl, 3 dwg |
