Antenna assembly including feed system having a sub-reflector

    公开(公告)号:US11888230B1

    公开(公告)日:2024-01-30

    申请号:US17825993

    申请日:2022-05-26

    IPC分类号: H01Q19/19 H01Q13/02

    CPC分类号: H01Q19/193 H01Q13/02

    摘要: In one embodiment, a parabolic antenna assembly includes a main reflector, a feed system in RF communication with the main reflector including a horn and a dielectric portion, and a sub-reflector in RF communication with the feed assembly, wherein the sub-reflector includes a body portion and a stem portion mechanically coupled to one another, wherein a reflecting surface of the sub-reflector is defined by at least a portion of the body portion and at least a portion of the stem portion, wherein the dielectric portion spaces the sub-reflector from the horn, and wherein the sub-reflector includes an axially-symmetric choke for providing virtual continuity at the reflecting surface.