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    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

    申请人： Mohammad A. Tassoudji ,  Ernest T. Ozaki ,  William R. Panton

    发明人： Mohammad A. Tassoudji ,  Ernest T. Ozaki ,  William R. Panton

    IPC分类号： H01Q1/36 ,  H01Q11/08 ,  H01Q21/06 ,  H01Q21/29 ,  H04B7/185 ,  G01S5/02

    CPC分类号： H01Q1/362 ,  H01Q11/08 ,  H01Q21/065 ,  H01Q21/29 ,  H01Q21/293

    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。

    Vertically correcting antenna for portable telephone handsets
    2.
    发明授权
    Vertically correcting antenna for portable telephone handsets 失效
    用于便携式电话手机的垂直校正天线

    公开(公告)号：US5844985A

    公开(公告)日：1998-12-01

    申请号：US532920

    申请日：1995-09-22

    申请人： Eric C. Kulberg ,  William R. Panton ,  James H. Thompson ,  Stephen B. Tidwell ,  Robert P. Gilmore

    发明人： Eric C. Kulberg ,  William R. Panton ,  James H. Thompson ,  Stephen B. Tidwell ,  Robert P. Gilmore

    IPC分类号： H01Q1/18 ,  H01Q1/24 ,  H04B1/38 ,  H04M1/00

    CPC分类号： H04B1/3833 ,  H01Q1/18 ,  H01Q1/242

    摘要： A portable phone unit for use in satellite communication systems has a vertically correcting antenna module pivotally secured to the handset for free rotation about a pivot axis. The module contains a mechanism, such as a gravitational counterweight for urging the module to pivot into a predetermined vertical orientation regardless of the handset orientation. An antenna projects from the module in a direction which is vertically upright when the module is in its predetermined vertical orientation. A mast mounted antenna module can also be used to take advantage of dissimilar antenna segment weights for multiple frequency antennas. As the handset is moved into an angular orientation, the module pivots under the weight of the counterweight, or a portion of the antenna itself, until the antenna is oriented vertically.

    摘要翻译： 用于卫星通信系统的便携式电话单元具有可枢转地固定到手机上的垂直校正天线模块，用于围绕枢转轴线自由旋转。 模块包含机构，例如重力配重，用于促使模块枢转到预定的垂直方向，而不管手柄方向如何。 当模块处于其预定的垂直方向时，天线从垂直竖直的方向从模块突出。 桅杆安装天线模块也可用于利用多个频率天线的不同天线分段权重。 当手机移动到角度方向时，模块在配重或天线本身的一部分的重量下枢转，直到天线垂直取向。

    Wireless terminal operating under an aggregate transmit power limit using multiple modems having fixed individual transmit power limits
    3.
    发明授权
    Wireless terminal operating under an aggregate transmit power limit using multiple modems having fixed individual transmit power limits 有权
    无线终端使用具有固定的单独发射功率限制的多个调制解调器在总发射功率限制下工作

    公开(公告)号：US07058421B2

    公开(公告)日：2006-06-06

    申请号：US10283676

    申请日：2002-10-29

    申请人： Francis M. Ngai ,  Aziz Gholmieh ,  Doug Gerecht ,  Jon J. Anderson ,  William R. Panton

    发明人： Francis M. Ngai ,  Aziz Gholmieh ,  Doug Gerecht ,  Jon J. Anderson ,  William R. Panton

    IPC分类号： H04B7/00

    CPC分类号： H04W52/30 ,  H04W52/34 ,  H04W52/36 ,  H04W52/42 ,  H04W52/52

    摘要： A mobile wireless terminal (MWT) includes multiple wireless modems. The multiple modems have their respective transmit outputs combined to produce an aggregate transmit output. The multiple modems can concurrently transmit data in a reverse link direction and receive data in a forward link direction. The MWT is constrained to operate under an aggregate transmit power limit. Each of the multiple modems has an individual transmit limit related to the aggregate transmit power limit. When operating, over-limit ones of the multiple modems are deactivated and then reactivated to keep an aggregate transmit power of all of the modems below the aggregate limit, and to maximize data through-put on the forward and reverse links.

    摘要翻译： 移动无线终端（MWT）包括多个无线调制解调器。 多个调制解调器具有组合的各自的发射输出以产生总发射输出。 多个调制解调器可以在反向链路方向上同时发送数据，并以前向链路方向接收数据。 MWT被限制在总发射功率极限下运行。 多个调制解调器中的每一个具有与总发射功率限制相关的单独发射限制。 当操作时，多个调制解调器中的超限制被去激活，然后重新启动，以将所有调制解调器的总发射功率保持在聚合限制以下，并且最大化正向和反向链路上的数据输入。

    Controlling multiple modems in a wireless terminal using dynamically varying modem transmit power limits
    5.
    发明授权
    Controlling multiple modems in a wireless terminal using dynamically varying modem transmit power limits 有权
    使用动态变化的调制解调器发射功率限制来控制无线终端中的多个调制解调器

    公开(公告)号：US07366142B2

    公开(公告)日：2008-04-29

    申请号：US11217819

    申请日：2005-09-01

    申请人： Francis M. Ngai ,  Aziz Gholmieh ,  Douglas A. Gerecht ,  Jon J. Anderson ,  William R. Panton

    发明人： Francis M. Ngai ,  Aziz Gholmieh ,  Douglas A. Gerecht ,  Jon J. Anderson ,  William R. Panton

    IPC分类号： H04B7/216 ,  H04L1/00 ,  H04Q7/20

    CPC分类号： H04W52/30 ,  H04W52/34 ,  H04W52/36 ,  H04W52/52

    摘要： A mobile wireless terminal (MWT) includes multiple wireless modems. The multiple modems have their respective transmit outputs combined together to produce an aggregate transmit output. The multiple modems can concurrently transmit data in a reverse link direction and receive data in a forward link direction. The MWT is constrained to operate under an aggregate transmit power limit. Each of the multiple modems has an individual transmit limit related to the aggregate transmit power limit. An MWT controller adjusts the individual transmit power limits in the multiple modems based on an aggregate transmit power limit of the MWT and respective transmit power estimates from the modems, to cause each individual transmit power limit to track a corresponding individual modem transmit power.

    摘要翻译： 移动无线终端（MWT）包括多个无线调制解调器。 多个调制解调器将它们各自的发射输出组合在一起以产生总的发射输出。 多个调制解调器可以在反向链路方向上同时发送数据，并以前向链路方向接收数据。 MWT被限制在总发射功率极限下运行。 多个调制解调器中的每一个具有与总发射功率限制相关的单独发射限制。 MWT控制器基于MWT的聚合发射功率限制和来自调制解调器的相应发射功率估计来调整多个调制解调器中的各个发射功率限制，以使每个单独的发射功率限制跟踪对应的各个调制解调器发射功率。