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90 条记录 (耗时 0.016 秒)

    Multi-beam satellite communications system
    31.
    发明公开
    Multi-beam satellite communications system 审中-公开
    多波束卫星通信系统

    公开(公告)号：EP1353454A3

    公开(公告)日：2005-10-19

    申请号：EP03016070.9

    申请日：2000-09-21

    申请人： EMS Technologies, Inc.

    发明人： Sharon, Thomas E. ,  Taylor, Thomas S. ,  Hafner, William R. ,  Rigg, Steven H. ,  Howell, James M. ,  Glynn, Thomas W. ,  Kershner, Dennis L.

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18584

    摘要： A satellite communications system having ground user terminals, hubs, and a geosynchronous satellite. The satellite generates a network of spot beam coverage areas on the earth. A hub and at least one ground terminal are located in each of at least two spot beams. A first user terminal transmits an uplink signal according to a first signal protocol to the hub through the satellite. A second user terminal receives a downlink signal according to a second signal protocol through the downlink spot beam from the hub through the satellite. The hub may be located in the same spot beam coverage area as the first or the second user terminal or may be located in an altogether different spot beam coverage area. Through selective frequency and/or polarization routing on board the satellite, a hub located within a "parent" beam can communicate with user terminals within the parent beam at a specified frequency and polarization, and can communicate with users in other "dependent" beams on a different frequency and/or polarization. This routing allocates the total available bandwidth between parent and dependent beams. The system enables asynchronous communications between each hub and the satellite to maximize frequency re-use and the overall capacity of the system.

    ANTENNA ARRAY FOR MOVING VEHICLES
    32.
    发明公开
    ANTENNA ARRAY FOR MOVING VEHICLES 有权
    天线阵列，用于移动车辆

    公开(公告)号：EP1456903A1

    公开(公告)日：2004-09-15

    申请号：EP02793895.0

    申请日：2002-11-08

    申请人： EMS Technologies, Inc.

    发明人： HOWELL, James, M. ,  FREEMAN, Robert, A.

    IPC分类号： H01Q3/26 ,  H01Q5/00 ,  H01Q3/08 ,  H01Q3/20 ,  H01Q1/32

    CPC分类号： H01Q19/104 ,  H01Q1/3275 ,  H01Q3/04 ,  H01Q3/08 ,  H01Q3/20 ,  H01Q3/26 ,  H01Q19/062 ,  H01Q21/0043

    摘要： A low-profile antenna system to be mounted to a moving vehicle for receiving signals, such as from a Digital Broadcast Satellite, includes a base for mounting to the surface of the vehicle, a platen mounted to the base for rotation, an azimuth drive motor for rotating the platen, an array of half-cylinder antenna elements mounted to the platen, an elevation drive motor for pivoting the antenna elements individually about their axes to change the elevation at which the antenna elements are pointing, and a cover. The azimuth drive motor and the elevation drive motor together allow the array of antenna elements to be pointed at a satellite over a wide range of vehicle orientations.

    Integrated circulators sharing a continuous circuit
    36.
    发明公开
    Integrated circulators sharing a continuous circuit 审中-公开
    IntegrierteUmwälzermit gemeinsamer durchgehender Schaltung

    公开(公告)号：EP2487750A1

    公开(公告)日：2012-08-15

    申请号：EP12154357.3

    申请日：2012-02-07

    申请人： EMS Technologies, Inc.

    发明人： Popelka, David J. ,  Vaughn, Todd ,  Voss, John D.

    IPC分类号： H01P1/387

    CPC分类号： H01P1/387

    摘要： The present invention is directed to a circuit assembly that includes an integrated circulator assembly. The circuit assembly has a first substrate, which contains a continuous circuit trace that includes a circulator component from the circulator assembly and at least one electrical component from the circuit assembly. A second substrate is disposed beneath the first substrate and includes a cladding on one surface. The second substrate contains an aperture that accepts a ferrite element, which is axially aligned with the circulator component of the circuit trace. A conductive material is placed across the ferrite element so that it forms a continuous ground plane with the cladding, which is common to the entire circuit trace. The circulator assembly also contains a magnet bonded to the ferrite element. The circulator assembly may also include a yoke disposed below the magnet to shield the circulator from external magnetic fields.

    摘要翻译： 本发明涉及一种包括集成循环器组件的电路组件。 电路组件具有第一衬底，其包含连续电路迹线，其包括来自循环器组件的环行器部件和来自电路组件的至少一个电部件。 第二基板设置在第一基板下方并且在一个表面上包括包层。 第二基板包含接收与电路迹线的循环器部件轴向对准的铁素体元件的孔。 导电材料横跨铁素体元件放置，使得它与包层形成连续的接地平面，这对于整个电路迹线是共同的。 循环器组件还包含结合到铁氧体元件的磁体。 循环器组件还可以包括设置在磁体下方的磁轭，以将环行器从外部磁场屏蔽。

    METHOD AND SYSTEM FOR CONNECTING A CABLE TO A CIRCUIT BOARD
    39.
    发明公开
    METHOD AND SYSTEM FOR CONNECTING A CABLE TO A CIRCUIT BOARD 审中-公开
    方法和系统，用于连接电缆与电路板

    公开(公告)号：EP1366544A4

    公开(公告)日：2007-08-22

    申请号：EP02717449

    申请日：2002-02-15

    申请人： EMS TECHNOLOGIES INC

    发明人： CARSON JAMES C ,  PHILLIPS SARA

    IPC分类号： H01R9/05 ,  H05K3/34 ,  H01R12/00

    CPC分类号： H01R9/0515 ,  H01R12/515 ,  H01R24/50 ,  H01R2201/02 ,  H05K3/3405

    摘要： Using a method and apparatus for connecting an electrical cable (3) to a circuit board (5). The connector (400) is largely semi-circular in shape and generally comprises four prongs (450) for attaching the connector (400) to the edge of a circuit board (5). The connector (400) is particularly useful for attaching a coaxial cable (3) to a circuit board (5) where the coaxial cable (3) is not very flexible. The coaxial cable (3) can be easily placed onto the connector (400). Once the coaxial cable (3) is placed on the connector (400), the outer conductor (7) can be attached to the connector (400) and the inner conductor (8) can be attached to the circuit board (5).

    Omnidirectional antenna utilizing an asymmetrical bicone as a passive feed for a radiating element
    40.
    发明公开
    Omnidirectional antenna utilizing an asymmetrical bicone as a passive feed for a radiating element 审中-公开
    Rundstrahlende Antenne mit einem不对称Doppelkegel als被动Speisungfürein Dipolelement

    公开(公告)号：EP1443598A1

    公开(公告)日：2004-08-04

    申请号：EP04008238.0

    申请日：2000-12-11

    申请人： EMS Technologies, Inc.

    发明人： Strickland, Peter, C. ,  Zimmerman, Kurt, Alan ,  Wann, John Elliot ,  Taylor, Thomas, Steven

    IPC分类号： H01Q9/28

    CPC分类号： H01Q9/28 ,  H01Q1/007

    摘要： An antenna assembly comprising a radiating element which passively receives a signal fed by a vertically-stacked pair of asymmetrically-shaped, conductive cone elements mounted below the radiating element. The cone elements are centrally fed by a coaxial cable input at a common junction formed the apex of each cone element. This antenna assembly provides a low-profile antenna to transmit and receive radio frequency (RF) energy with high gain and desirable antenna patterns for data transmission in an in-building, wireless local area network The antenna assembly can be mounted in a standard ceiling or wall-mounted enclosure, with the low-profile antenna extending beneath the surface of a conductive enclosure cover that serves as the ground plane for the antenna element. This configuration achieves high antenna gain with a downtilt-beam, omnidirectional radiation pattern, which is highly desirable in an in-building wireless local area network (WLAN) application.

    摘要翻译： 一种天线组件，包括辐射元件，被动地接收由安装在辐射元件下方的垂直堆叠的一对不对称形状的导电锥形元件馈送的信号。 锥形元件由同轴电缆输入中心地馈送在形成每个锥形元件的顶点的公共接头处。 该天线组件提供了一种低调天线，用于以高增益发射和接收射频（RF）能量，并且在建筑物内的无线局域网中进行数据传输所需的天线方向图天线组件可安装在标准天花板或 壁挂式外壳，其中低调天线延伸在用作天线元件的接地平面的导电外壳盖的表面下方。 这种配置通过下倾斜，全向辐射图实现高天线增益，这在建筑物内无线局域网（WLAN）应用中是非常需要的。