Wide scan phased array fed reflector systems

    公开(公告)号:US11264729B2

    公开(公告)日:2022-03-01

    申请号:US16226445

    申请日:2018-12-19

    Abstract: Systems and methods are provided for wide scan phased array fed reflector systems using ring-focus optics to significantly improve the scan volume of such systems. The subject system includes a reflector having a focal plane and a parabolic curvature configured to receive electromagnetic radiation having a first gain and provide reflected electromagnetic radiation having a second gain greater than the first gain that collimates into a focal ring. The subject system includes a feed array having feed elements positioned about the focal ring, in which each feed element is configured to receive the reflected electromagnetic radiation from the reflector and collimate the reflected electromagnetic radiation into a scanned beam for scanning an annular region. In some aspects, the feed array is centered on the focal ring such that at least one feed element overlaps with the focal ring and remaining feed elements are non-overlapping with the focal ring.

    Dual-polarized aperture-coupled patch antenna array with high isolation

    公开(公告)号:US10819041B1

    公开(公告)日:2020-10-27

    申请号:US16054865

    申请日:2018-08-03

    Abstract: An antenna system includes an antenna array including a number of antenna elements disposed on a substrate. Each antenna element includes a radiation layer, a ground plane layer, a feed layer and an additional ground plane layer. The ground plane layer includes a ground plane conductive layer that has a number of slots. The feed layer includes a feed structure to excite the slots. A dual polarization feature of the antenna array is realized via the slots, and the slots are separated by the ground plane conductive layer.

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