Compact antenna for low and medium earth orbit satellite communication
systems
    1.
    发明授权
    Compact antenna for low and medium earth orbit satellite communication systems 有权
    用于低和中等地球轨道卫星通信系统的紧凑型天线

    公开(公告)号:US6049305A

    公开(公告)日:2000-04-11

    申请号:US163850

    申请日:1998-09-30

    摘要: A compact, low cost antenna communicates with low and medium earth orbit satellites. The antenna includes a plurality of micro-strip elements arranged about an axis and positioned to illuminate upper elevation angles. The micro-strip elements are perpendicular to each other and are oriented toward the horizon at 90 degree increments. Furthermore, the micro-strip elements are tilted at a 50 degree angle. A quadrifilar helix is positioned at the center of the micro-strip elements and positioned to illuminate lower elevation angles. The micro-strip elements generate an omni-directional field pattern in the azimuth plane. The quadrifilar helix generates a high-gain, narrow beam-width field pattern that is also omni-directional in the azimuth plane. The antenna provides improved immunity to specular ground reflections by limiting reception of signals below a threshold elevation angle. Also, the antenna provides continuous, uninterrupted communications by eliminating "dead" period associated with conventional parabolic dish antennas.

    摘要翻译: 紧凑的低成本天线与低和中等轨道卫星通信。 天线包括围绕轴线布置并被定位成照亮上仰角的多个微带元件。 微带元件彼此垂直并且以90度的增量朝向地平线定向。 此外,微带元件以50度角倾斜。 四叶螺旋位于微带元件的中心并且定位成照亮较低的仰角。 微带元件在方位平面中产生全向场模式。 四叉螺旋生成在方位平面中也是全方位的高增益窄波束宽度场图案。 该天线通过限制低于阈值仰角的信号接收来提供对镜面反射的改善的抗扰度。 此外,天线通过消除与常规抛物面天线相关联的“死区”周期来提供连续的不间断通信。

    GROUND STATION ANTENNA ARRAY FOR AIR TO GROUND COMMUNICATION SYSTEM
    2.
    发明申请
    GROUND STATION ANTENNA ARRAY FOR AIR TO GROUND COMMUNICATION SYSTEM 审中-公开
    地面站天线阵列,用于空中接地通信系统

    公开(公告)号:US20120200458A1

    公开(公告)日:2012-08-09

    申请号:US13168623

    申请日:2011-06-24

    IPC分类号: H01Q3/00

    摘要: A ground station antenna array includes a first array of antenna elements. A second array of antenna elements are vertically aligned with the first array of antenna elements. The first array of antenna elements and the second array of antenna elements are coupled to the digital beam forming circuitry and each cover a same sector of azimuth; the first array of antenna elements only covering a first elevation; the second array of antenna elements only covering a second lower elevation. The digital beam forming circuitry directs a radiation pattern of the first array of antenna elements in a first range of elevation angles, and directs a radiation pattern of the second array of antenna elements in a second range of elevation angles. The second array of antenna elements has higher gain than the first array. A respective transceiver is coupled to respective antenna elements of the first and second arrays.

    摘要翻译: 地面站天线阵列包括天线元件的第一阵列。 天线元件的第二阵列与天线元件的第一阵列垂直对准。 天线元件的第一阵列和第二天线元件阵列耦合到数字波束形成电路,并且每个覆盖相同的方位角; 天线元件的第一阵列仅覆盖第一高度; 天线元件的第二阵列仅覆盖第二较低高度。 数字波束形成电路在第一仰角范围内引导天线元件的第一阵列的辐射图案,并且在第二仰角范围内引导天线元件的第二阵列的辐射图。 天线元件的第二阵列具有比第一阵列更高的增益。 相应的收发器耦合到第一和第二阵列的相应天线元件。

    Compact dual mode integrated antenna system for terrestrial cellular and satellite telecommunications
    3.
    发明授权
    Compact dual mode integrated antenna system for terrestrial cellular and satellite telecommunications 有权
    用于陆地蜂窝和卫星通信的紧凑型双模集成天线系统

    公开(公告)号:US06720929B2

    公开(公告)日:2004-04-13

    申请号:US09940379

    申请日:2001-08-27

    IPC分类号: H01Q2100

    摘要: The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequency range. A wireless telephone using this assembly can, therefore, operate with either a terrestrial cellular communications system or a satellite communications system. In a preferred embodiment of the invention, the satellite communications antenna is a quadrifilar helix antenna and the cellular communications antenna is a sleeve dipole. The whip portion of the sleeve dipole is positioned axially in the center of the quadrifilar helix antenna. This orientation permits operation in both the satellite and cellular frequency ranges without significant electromagnetic coupling.

    摘要翻译: 本发明代表包括蜂窝通信天线和卫星通信天线的集成天线组件。 因此,这样的天线组件可以用于任何频率范围上的通信。 因此,使用该组件的无线电话可以与陆地蜂窝通信系统或卫星通信系统一起操作。 在本发明的优选实施例中,卫星通信天线是四极螺旋天线,蜂窝通信天线是套筒偶极子。 套管偶极子的鞭状部分轴向位于四边形螺旋天线的中心。 这种方向允许在卫星和蜂窝频率范围内进行操作,而没有显着的电磁耦合。

    High data rate aircraft to ground communication antenna system
    5.
    发明授权
    High data rate aircraft to ground communication antenna system 有权
    高数据速率飞机到地面通信天线系统

    公开(公告)号:US08676192B2

    公开(公告)日:2014-03-18

    申请号:US13168538

    申请日:2011-06-24

    IPC分类号: H04W4/00

    摘要: A method for ground to air communication includes receiving a first pilot signal on a first wide beam from a first ground base station by a first antenna element covering a first range of azimuth angles from an aircraft. Data is received on a directed data beam from the first ground base station by the first antenna element. A second pilot signal is received on a second wide beam from a second ground base station by a second antenna element covering a second range of azimuth angles different than the first range of azimuth angles. A signal strength of the second pilot signal is compared with a signal strength of the first pilot signal. Data reception is switched from the first antenna element to the second antenna element if the signal strength of the second pilot signal is greater than the signal strength of the first pilot signal.

    摘要翻译: 一种用于地对空通信的方法包括:通过第一天线元件从第一地面基站接收来自飞机的第一方位角范围的第一宽波束上的第一导频信号。 通过第一天线元件在来自第一地面基站的有向数据波束上接收数据。 第二导频信号通过第二天线元件在第二地面基站的第二宽波束上被接收,该第二天线元件覆盖与第一方位角范围不同的第二方位角范围。 将第二导频信号的信号强度与第一导频信号的信号强度进行比较。 如果第二导频信号的信号强度大于第一导频信号的信号强度,则数据接收从第一天线元件切换到第二天线元件。

    HIGH DATA RATE AIRCRAFT TO GROUND COMMUNICATION ANTENNA SYSTEM
    6.
    发明申请
    HIGH DATA RATE AIRCRAFT TO GROUND COMMUNICATION ANTENNA SYSTEM 有权
    高数据速率飞机到地面通信天线系统

    公开(公告)号:US20120202430A1

    公开(公告)日:2012-08-09

    申请号:US13168538

    申请日:2011-06-24

    摘要: A method for ground to air communication includes receiving a first pilot signal on a first wide beam from a first ground base station by a first antenna element covering a first range of azimuth angles from an aircraft. Data is received on a directed data beam from the first ground base station by the first antenna element. A second pilot signal is received on a second wide beam from a second ground base station by a second antenna element covering a second range of azimuth angles different than the first range of azimuth angles. A signal strength of the second pilot signal is compared with a signal strength of the first pilot signal. Data reception is switched from the first antenna element to the second antenna element if the signal strength of the second pilot signal is greater than the signal strength of the first pilot signal.

    摘要翻译: 一种用于地对空通信的方法包括:通过第一天线元件从第一地面基站接收来自飞机的第一方位角范围的第一宽波束上的第一导频信号。 通过第一天线元件在来自第一地面基站的有向数据波束上接收数据。 第二导频信号通过第二天线元件在第二地面基站的第二宽波束上被接收,该第二天线元件覆盖与第一方位角范围不同的第二方位角范围。 将第二导频信号的信号强度与第一导频信号的信号强度进行比较。 如果第二导频信号的信号强度大于第一导频信号的信号强度,则数据接收从第一天线元件切换到第二天线元件。

    Compact dual mode integrated antenna system for terrestrial cellular and satellite telecommunications
    8.
    发明授权
    Compact dual mode integrated antenna system for terrestrial cellular and satellite telecommunications 有权
    用于陆地蜂窝和卫星通信的紧凑型双模集成天线系统

    公开(公告)号:US06320549B1

    公开(公告)日:2001-11-20

    申请号:US09401577

    申请日:1999-09-22

    IPC分类号: H01Q2100

    摘要: The present invention represents an integrated antenna assembly comprising a cellular communications antenna and a satellite communications antenna. Such an antenna assembly can, therefore, be used for communications over either frequency range. A wireless telephone using this assembly can, therefore, operate with either a terrestrial cellular communications system or a satellite communications system. In a preferred embodiment of the invention, the satellite communications antenna is a quadrifilar helix antenna and the cellular communications antenna is a sleeve dipole. The whip portion of the sleeve dipole is positioned axially in the center of the quadrifilar helix antenna. This orientation permits operation in both the satellite and cellular frequency ranges without significant electromagnetic coupling.

    摘要翻译: 本发明代表包括蜂窝通信天线和卫星通信天线的集成天线组件。 因此,这样的天线组件可以用于任何频率范围上的通信。 因此,使用该组件的无线电话可以与陆地蜂窝通信系统或卫星通信系统一起操作。 在本发明的优选实施例中,卫星通信天线是四极螺旋天线,蜂窝通信天线是套筒偶极子。 套管偶极子的鞭状部分轴向位于四边形螺旋天线的中心。 这种方向允许在卫星和蜂窝频率范围内进行操作,而没有显着的电磁耦合。

    Apparatus for wireless device charging using radio frequency (RF) energy and device to be wirelessly charged
    9.
    发明授权
    Apparatus for wireless device charging using radio frequency (RF) energy and device to be wirelessly charged 有权
    用于使用射频(RF)能量和装置进行无线充电的无线设备充电的装置

    公开(公告)号:US09236756B2

    公开(公告)日:2016-01-12

    申请号:US13481826

    申请日:2012-05-26

    摘要: An apparatus for wireless charging using radio frequency (RF) energy includes a first charger portion having first and second charging areas. The first and second charging areas are located in a common plane, each having at least one coil for wirelessly charging a charge-receiving device placed in proximity thereto. The coils include respective windings, which are wound in opposing directions, each coil being connected in series, each coil configured to charge at least one charge-receiving device. A second charger portion has a third charging area having at least one coil including a winding for wirelessly charging a charge-receiving device placed in proximity to the third charging area, the coil in the third charging area being connected in series with the coils in the first and second charging areas, the third charging area located in a plane that is orthogonal to the plane of the first and second charging areas.

    摘要翻译: 一种使用射频(RF)能量的无线充电装置包括具有第一和第二充电区域的第一充电器部分。 第一和第二充电区域位于公共平面中,每个平面具有至少一个线圈,用于对放置在其附近的充电接收装置进行无线充电。 线圈包括以相反方向缠绕的各个绕组,每个线圈串联连接,每个线圈构造成对至少一个电荷接收装置充电。 第二充电器部分具有第三充电区域,其具有至少一个线圈,该线圈包括用于无线充电放置在第三充电区域附近的电荷接收装置的绕组,第三充电区域中的线圈与线圈中的线圈串联连接 第一和第二充电区域,第三充电区域位于与第一和第二充电区域的平面正交的平面中。