RADAR SIGNAL DEVICE WHERE A PROJECTION OF A FEED STRUCTURE AT LEAST PARTIALLY OVERLAPS WITH AN OPENING ON A METAL LAYER

    公开(公告)号:US20230420866A1

    公开(公告)日:2023-12-28

    申请号:US18197736

    申请日:2023-05-16

    Inventor: Shih-Kai Lin

    CPC classification number: H01Q19/136 H01Q1/3233

    Abstract: A radar signal device includes an antenna unit, a transmission circuit and a reception circuit. The antenna unit is used to concurrently transmit a transmission signal and receive a reception signal. The antenna unit includes a metal layer, a first feed structure and a second feed structure. An opening is formed on the metal layer. A first projection of the first feed structure on the metal layer at least partially overlaps with the opening. A second projection of the second feed structure on the metal layer at least partially overlaps with the opening. The antenna unit forms a first radiation pattern used to transmit the transmission signal and a second radiation pattern used to receive the reception signal. An angle between a co-polarized electric field direction of the first radiation pattern and a co-polarized electric field direction of the second radiation pattern is between 45 degrees and 135 degrees.

    High Efficiency Agile Polarization Diversity Compact Miniaturized Multi-Frequency Band Antenna System With Integrated Distributed Transceivers
    2.
    发明申请
    High Efficiency Agile Polarization Diversity Compact Miniaturized Multi-Frequency Band Antenna System With Integrated Distributed Transceivers 有权
    高效敏捷极化多样性紧凑型小型化多频天线系统与集成分布式收发器

    公开(公告)号:US20140139386A1

    公开(公告)日:2014-05-22

    申请号:US13974789

    申请日:2013-08-23

    Abstract: A compact, agile polarization diversity, multiband antenna with integrated electronics for satellite communications antenna systems is disclosed. The antenna includes a feed assembly having integrated microwave electronics that are mechanically and electromagnetically coupled thereto in a distributed arrangement so that diverse polarization senses having a low axial ratio and electronic switching control is provided. The microwave electronics include a distributed transmitter that can include high-band and low-band transceivers. The high-band and low-band transceivers can include high-band and low-band transmitter and receiver pairs, respectively. The antenna presented enables the mechanical rotation of the orientation of the high-band transceiver for skew alignment while the low-band transceiver remains stationary relative to the antenna assembly. The low-band transmitter and receiver pair can include planar interfaces electromagnetically coupled to the feed assembly between a main reflector and subreflector via OMTs. The highly compact antenna system presented offers polarization performance previously achievable by only larger devices.

    Abstract translation: 公开了一种用于卫星通信天线系统的紧凑,灵活的极化分集,多频带天线,具有集成电子装置。 天线包括具有集成的微波电子器件的馈电组件,其以分布式布置机械地和电磁耦合到其上,从而提供具有低轴比和电子开关控制的各种极化感测。 微波电子设备包括可以包括高频带和低频收发器的分布式发射机。 高频带和低频收发机可分别包括高频带和低频发射机和接收机对。 所呈现的天线使得能够在高频带收发器相对于天线组件保持静止的情况下使高频带收发器的取向机械旋转以进行偏斜对准。 低频发射机和接收机对可以包括通过OMT在主反射器和子反射器之间电磁耦合到馈电组件的平面接口。 提供的高度紧凑的天线系统提供了以前仅由更大的设备可实现的极化性能。

    Multibeam Transmitting and Receiving Antenna with Multiple Feeds Per Beam, System of Antennas and Satellite Telecommunication System Containing Such an Antenna
    3.
    发明申请
    Multibeam Transmitting and Receiving Antenna with Multiple Feeds Per Beam, System of Antennas and Satellite Telecommunication System Containing Such an Antenna 有权
    多波束发射和接收天线,每束多个馈电,天线系统和包含这种天线的卫星通信系统

    公开(公告)号:US20140022138A1

    公开(公告)日:2014-01-23

    申请号:US13945781

    申请日:2013-07-18

    Applicant: THALES

    Abstract: The transmitting and receiving antenna comprises an array of feeds clustered by groups of four adjacent feeds along two directions X, Y of a plane, each feed comprising two transmitting ports and two receiving ports with orthogonal polarizations. For each group of four adjacent feeds, the first, or the second, transmitting ports, respectively the first, or the second, receiving ports, corresponding to a same pair of frequency and polarization values are connected two-by-two in the direction X then two-by-two in the direction Y, the four interconnected transmitting ports forming a transmitting beam and the four interconnected receiving ports forming a receiving beam.

    Abstract translation: 发射和接收天线包括沿着平面的两个方向X,Y的四个相邻馈送组聚集的馈送阵列,每个馈送包​​括两个发射端口和两个具有正交偏振的接收端口。 对于每组四个相邻的馈送,对应于同一对频率和极化值的第一或第二发送端口,分别为第一或第二接收端口,在X方向上逐个连接 然后在Y方向上两个二,四个相互连接的发射端口形成发射波束,四个互连的接收端口形成接收波束。

    Agile diverse polarization multi-frequency band antenna feed with rotatable integrated distributed transceivers
    7.
    发明授权
    Agile diverse polarization multi-frequency band antenna feed with rotatable integrated distributed transceivers 有权
    敏捷的多极化多频带天线馈电,可旋转的集成分布式收发器

    公开(公告)号:US09520637B2

    公开(公告)日:2016-12-13

    申请号:US13974886

    申请日:2013-08-23

    Abstract: A compact, agile polarization diversity, multiple frequency band antenna with integrated electronics for terrestrial terminal use in satellite communications systems includes an antenna feed having highly integrated microwave electronics that are mechanically and electromagnetically coupled thereto in a distributed arrangement so that diverse polarization senses having a low axial ratio and electronic switching control of the polarization senses is provided. The arrangement of the integrated distributed transceiver configuration enables the mechanical rotation of the orientation of a first transceiver for skew alignment while a second transceiver remains stationary relative to the antenna feed assembly. The first transceiver can be a high-band transmitter and receiver pair that supports linear polarization senses, and the second transceiver can be a low-band transmitter and receiver pair that supports circular polarization senses. The antenna system presented is highly compact and offers improved polarization performance previously achievable by only larger devices.

    Abstract translation: 紧凑的,敏捷的极化分集,具有用于卫星通信系统中的地面终端使用的集成电子装置的多频带天线包括具有高度集成的微波电子器件的天线馈电,其以分布式布置机械地和电磁耦合到其上,使得具有低的 提供了轴向比和极化感的电子切换控制。 集成分布式收发器配置的布置使得能够使第一收发器的方向的机械旋转用于偏斜对准,而第二收发器相对于天线馈送组件保持静止。 第一收发器可以是支持线偏振感测的高频发射器和接收器对,并且第二收发器可以是支持圆偏振感的低频发射器和接收器对。 所呈现的天线系统非常紧凑,并且提供了仅由更大的设备提前改进的极化性能。

    Low wind load parabolic dish antenna fed by crosspolarized printed dipoles
    8.
    发明授权
    Low wind load parabolic dish antenna fed by crosspolarized printed dipoles 有权
    由交叉极化印刷偶极子馈送的低风载抛物面天线

    公开(公告)号:US07324057B2

    公开(公告)日:2008-01-29

    申请号:US11234890

    申请日:2005-09-26

    CPC classification number: H01Q15/162 H01Q15/168 H01Q19/136

    Abstract: The present invention provides a parabolic dish reflector antenna for wireless communications that is dually polarized for diversity reception purposes while causing minimal visual disturbance for use with cellular base stations and repeaters. The antenna comprises a reflector of paraboloidal shape along both the longitudinal and latitudinal axes of its diameter. The reflector of the antenna is comprised of 4 identical quadrants assembled at the installation site, where each quadrant is made of thin metal ribs with large openings metal mesh stretched and attached to the ribs. The antenna further comprises a feed that is located around the focal point. The antenna feed comprises an open cup-shaped conductive cavity wherein the two orthogonally mounted feeding elements of the antenna located within its volume, are low cost printed circuit board elements.

    Abstract translation: 本发明提供一种用于无线通信的抛物面盘反射器天线,其被双极化以用于分集接收目的,同时对蜂窝基站和中继器使用最少的视觉干扰。 该天线包括沿其直径的纵轴和纬线的抛物线形状的反射器。 天线的反射器由在安装地点组装的4个相同的象限组成,其中每个象限由细金属肋制成,大的开口金属网被拉伸并附着到肋上。 天线还包括位于焦点周围的馈送。 天线馈电包括开放的杯形导电腔,其中位于其体积内的天线的两个正交安装馈电元件是低成本印刷电路板元件。

    Multi-band feed assembly for linear and circular polarization
    9.
    发明授权
    Multi-band feed assembly for linear and circular polarization 有权
    用于线性和圆偏振的多波段馈线组件

    公开(公告)号:US08994473B2

    公开(公告)日:2015-03-31

    申请号:US13338286

    申请日:2011-12-28

    Abstract: A waveguide has distal, medial and proximal sections. The distal and medial sections rotate relative to each other and to the proximal section. In a first configuration, the waveguide transforms linearly polarized electromagnetic radiation at the proximal end of the proximal section to linearly polarized electromagnetic radiation at the distal end of the distal section and vice versa. In a second configuration, the waveguide transforms linearly polarized radiation at the proximal end of the proximal section into circularly polarized electromagnetic radiation at the distal end of the distal section and vice versa. Preferably, the distal and medial sections include respective eight-wavelength polarizers and the proximal section includes a quarter-wavelength polarizer. A multi-band antenna feed includes two such waveguides, one nested inside the other, for transforming electromagnetic radiation of respective frequency bands.

    Abstract translation: 波导具有远端,内侧和近端部分。 远侧和中间部分相对于彼此和近端部分旋转。 在第一构造中,波导将近端部分的近端处的线偏振电磁辐射转换成在远端部分的远端处的线偏振电磁辐射,反之亦然。 在第二配置中,波导将近端部分的近端处的线性偏振辐射转换成远端部分的远端处的圆极化电磁辐射,反之亦然。 优选地,远侧和中间部分包括相应的八波长偏振器,并且近侧部分包括四分之一波长的偏振器。 多频带天线馈电包括两个这样的波导,一个嵌套在另一个中,用于转换各个频带的电磁辐射。

    Low wind load parabolic dish antenna fed by crosspolarized printed dipoles
    10.
    发明申请
    Low wind load parabolic dish antenna fed by crosspolarized printed dipoles 有权
    由交叉极化印刷偶极子馈送的低风载抛物面天线

    公开(公告)号:US20070069970A1

    公开(公告)日:2007-03-29

    申请号:US11234890

    申请日:2005-09-26

    CPC classification number: H01Q15/162 H01Q15/168 H01Q19/136

    Abstract: The present invention provides a parabolic dish reflector antenna for wireless communications that is dually polarized for diversity reception purposes while causing minimal visual disturbance for use with cellular base stations and repeaters. The antenna comprises a reflector of paraboloidal shape along both the longitudinal and latitudinal axes of its diameter. The reflector of the antenna is comprised of 4 identical quadrants assembled at the installation site, where each quadrant is made of thin metal ribs with large openings metal mesh stretched and attached to the ribs. The antenna further comprises a feed that is located around the focal point. The antenna feed comprises an open cup-shaped conductive cavity wherein the two orthogonally mounted feeding elements of the antenna located within its volume, are low cost printed circuit board elements.

    Abstract translation: 本发明提供一种用于无线通信的抛物面盘反射器天线,其被双极化以用于分集接收目的,同时对蜂窝基站和中继器使用最少的视觉干扰。 该天线包括沿其直径的纵轴和纬线的抛物线形状的反射器。 天线的反射器由在安装地点组装的4个相同的象限组成,其中每个象限由细金属肋制成,大的开口金属网被拉伸并附着到肋上。 天线还包括位于焦点周围的馈送。 天线馈电包括开放的杯形导电腔,其中位于其体积内的天线的两个正交安装馈电元件是低成本印刷电路板元件。

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