Multi-bandpass, dual-polarization radome with embedded gridded structures
    57.
    发明授权
    Multi-bandpass, dual-polarization radome with embedded gridded structures 有权
    具有嵌入式网格结构的多通道双极化天线罩

    公开(公告)号:US09362615B2

    公开(公告)日:2016-06-07

    申请号:US13660471

    申请日:2012-10-25

    申请人: Raytheon Company

    IPC分类号: H01Q1/42 H01Q15/00

    摘要: A radome is provided and includes a dielectric wall and metallic layers embedded within and/or disposed on the monolithic wall. Each of the metallic layers is configured to act as a sub-resonant reactive impedance surface at a lower frequency and as a frequency selective surface at an upper frequency.

    摘要翻译: 提供了天线罩,并且包括介电壁和嵌入在整体壁内和/或设置在整体壁上的金属层。 每个金属层被配置为在较低频率处作为次谐振无功阻抗表面,并且作为频率选择表面处于较高频率。

    High-gain wideband antenna apparatus
    58.
    发明授权
    High-gain wideband antenna apparatus 有权
    高增益宽带天线装置

    公开(公告)号:US09246231B2

    公开(公告)日:2016-01-26

    申请号:US13746384

    申请日:2013-01-22

    发明人: JeongHo Ju

    IPC分类号: H01Q15/02 H01Q1/42 H01Q15/00

    摘要: Disclosed is a high-gain wideband antenna apparatus. The high-gain wideband antenna apparatus, includes: a feeding antenna configured to radiate a signal; a cover configured to be disposed on a front surface of the feeding antenna based on a radiation direction of the signal and including a conductor pattern formed in a specific shape; and a ground surface configured to be disposed on the feeding antenna based on the radiation direction of the signal. By this configuration, the conductor patterns are approximately configured on both surfaces of a dielectric material to control a phase of a reflection coefficient in a specific frequency band, thereby increasing a gain and a bandwidth of an antenna and metal surfaces are additionally mounted on sides of a feeding antenna, thereby improving a front back ratio of the antenna.

    摘要翻译: 公开了一种高增益宽带天线装置。 高增益宽带天线装置包括:配置成辐射信号的馈电天线; 盖,其被构造成基于所述信号的辐射方向设置在所述馈送天线的前表面上,并且包括形成为特定形状的导体图案; 以及基于所述信号的辐射方向配置为设置在所述馈送天线上的接地面。 通过这种构造,导体图案被近似地配置在电介质材料的两个表面上,以控制特定频带中的反射系数的相位,从而增加天线和金属表面的增益和带宽,另外安装在 馈电天线,从而提高天线的前后比。

    Reducing radar signatures
    59.
    发明授权
    Reducing radar signatures 失效
    减少雷达签名

    公开(公告)号:US08384581B2

    公开(公告)日:2013-02-26

    申请号:US12306520

    申请日:2008-10-24

    IPC分类号: H01Q15/00

    摘要: A structure and a method for modifying an existing design of structure are provided, wherein the structure is provided to at least partially enclose an object that has a large radar cross section. The structure comprises a non-metallic portion having a radar-reflective layer applied to an inclined surface of the structure. The inclined surface is arranged with one or more angles of inclination selected so that the radar cross-section for the structure has a value that is lower than that for the object enclosed in one or more frequency ranges. In a preferred variation, an at least partially detached and appropriately shaped radar-reflective structure may be provided as an alternative to or to supplement the modification of an existing enclosure.

    摘要翻译: 提供了一种用于修改现有结构设计的结构和方法,其中提供该结构以至少部分地包围具有大雷达截面的物体。 该结构包括具有应用于该结构的倾斜表面的雷达反射层的非金属部分。 倾斜表面被布置成选择一个或多个倾斜角度,使得结构的雷达横截面具有比在一个或多个频率范围内包围的物体的值低的值。 在优选的变型中,可以提供至少部分分离和适当形状的雷达反射结构作为对现有外壳的修改的补充或补充。