利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

137 条记录 (耗时 0.032 秒)

    Access point antenna for a wireless local area network
    51.
    发明授权
    Access point antenna for a wireless local area network 有权
    无线局域网接入点天线

    公开(公告)号：US07239288B2

    公开(公告)日：2007-07-03

    申请号：US10953893

    申请日：2004-09-29

    申请人： Michael J. Lynch ,  Bing Chiang

    发明人： Michael J. Lynch ,  Bing Chiang

    IPC分类号： H01Q19/10

    CPC分类号： H01Q1/2291 ,  H01Q19/32

    摘要： An access point antenna for a wireless local area network (WLAN) includes a combiner network with a feed point, a ground plane adjacent the combiner network, and a dielectric substrate adjacent the ground plane. Conductive paths are on the dielectric substrate and are coupled to the feed point. Active antenna elements extend from the dielectric substrate. Each active antenna element is coupled to a respective conductive path and is equally spaced from a common area on the dielectric substrate. A passive director antenna element extends from the dielectric substrate and is coupled to the ground plane adjacent the common area.

    摘要翻译： 用于无线局域网（WLAN）的接入点天线包括具有馈电点的组合器网络，与组合器网络相邻的接地平面以及与接地平面相邻的电介质衬底。 导电路径在电介质基片上并耦合到馈电点。 有源天线元件从电介质基片延伸。 每个有源天线元件耦合到相应的导电路径，并且与电介质基片上的公共区域等间隔开。 无源导向器天线元件从电介质基板延伸并且被耦合到邻近公共区域的接地平面。

    Method and system for managing a cell sectorized by both an angle in azimuth and a distance from a base station
    53.
    发明申请
    Method and system for managing a cell sectorized by both an angle in azimuth and a distance from a base station 审中-公开
    用于管理由方位角和与基站距离的扇区化的小区的方法和系统

    公开(公告)号：US20060084474A1

    公开(公告)日：2006-04-20

    申请号：US11066349

    申请日：2005-02-25

    申请人： Ana Iacono ,  Bing Chiang ,  Michael Lynch ,  Steven Goldberg

    发明人： Ana Iacono ,  Bing Chiang ,  Michael Lynch ,  Steven Goldberg

    IPC分类号： H04M1/00

    CPC分类号： H04W16/28

    摘要： A method and system for managing a cell sectorized by both an angle in azimuth and a distance from a base station are disclosed. A wireless communication system comprises a base station and a cell. The base station comprises an antenna array for generating a plurality of directional beams which are steerable both in azimuth and elevation. The cell is sectorized into a plurality of sectors defined in accordance with an angle in azimuth and a distance from the base station. At least one directional beam serves each sector. Beams serving adjacent sectors overlap each other, and a softer handover in a cell is performed in the overlapping region.

    摘要翻译： 公开了一种用于管理由方位角和距离基站的距离分段化的小区的方法和系统。 无线通信系统包括基站和小区。 该基站包括用于产生可在方位角和仰角两者都可操纵的多个定向波束的天线阵列。 小区被划分成根据方位角和距离基站的距离限定的多个扇区。 至少一个定向波束服务于每个扇区。 服务于相邻扇区的光束彼此重叠，并且在重叠区域中执行小区中更软的切换。

    Electronic phase shifter with enhanced phase shift performance
    54.
    发明授权
    Electronic phase shifter with enhanced phase shift performance 失效

    公开(公告)号：US06992546B2

    公开(公告)日：2006-01-31

    申请号：US11022483

    申请日：2004-12-22

    申请人： Bing Chiang ,  James A. Proctor, Jr. ,  Kenneth M. Gainey

    发明人： Bing Chiang ,  James A. Proctor, Jr. ,  Kenneth M. Gainey

    IPC分类号： H01P1/18

    CPC分类号： H01P1/185

    摘要： A varactor based phase shifter that increases phase shift range using a lower characteristic impedance between quadrature ports than is used at its input/output ports. The circuit makes use of a four port coupler arrangement that imbeds a quarter wave impedance transformation between the input port and the quadrature ports as well as between the quadrature ports and the output port. The characteristic impedance across the quadrature ports is therefore less than the characteristic impedance across the input and output ports. In one implementation, reducing a characteristic input/output impedance of 50 to a 20 ohm quadrature port impedance results in a phase shift range increase of more than 50%.

    Low cost multiple pattern antenna for use with multiple receiver systems
    56.
    发明授权
    Low cost multiple pattern antenna for use with multiple receiver systems 失效
    低成本多模式天线，用于多个接收机系统

    公开(公告)号：US06894653B2

    公开(公告)日：2005-05-17

    申请号：US10664413

    申请日：2003-09-17

    申请人： Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr. ,  Antoine J. Rouphael ,  Griffin K. Gothard ,  Michael J. Lynch

    发明人： Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor, Jr. ,  Antoine J. Rouphael ,  Griffin K. Gothard ,  Michael J. Lynch

    IPC分类号： H01Q1/22 ,  H01Q3/26 ,  H01Q3/44 ,  H01Q9/16 ,  H01Q19/26 ,  H01Q19/32 ,  H01Q21/06 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/29 ,  H01Q3/00

    CPC分类号： H01Q3/2641 ,  H01Q1/22 ,  H01Q1/2258 ,  H01Q9/16 ,  H01Q19/26 ,  H01Q19/32 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q21/29

    摘要： An antenna assembly includes at least two active or main radiating omni-directional antenna elements arranged with at least one beam control or passive antenna element used as a reflector. The beam control antenna element(s) may have multiple reactance elements that can electrically terminate it to adjust the input or output beam pattern(s) produced by the combination of the active antenna elements and the beam control antenna element(s). More specifically, the beam control antenna element(s) may be coupled to different terminating reactances to change beam characteristics, such as the directivity and angular beamwidth. Processing may be employed to select which terminating reactance to use. Consequently, the radiator pattern of the antenna can be more easily directed towards a specific target receiver/transmitter, reduce signal-to-noise interference levels, and/or increase gain by using Radio Frequency (RF), Intermediate Frequency (IF), or baseband processing. A Multiple-Input, Multiple-Output (MIMO) processing technique may be employed to operate the antenna assembly with simultaneous beam patterns.

    摘要翻译： 天线组件包括至少两个有源或主辐射全向天线元件，其布置有用作反射器的至少一个光束控制或无源天线元件。 波束控制天线元件可以具有多个电抗元件，其可以电气端接它，以调节由有源天线元件和波束控制天线元件的组合产生的输入或输出波束图案。 更具体地，波束控制天线元件可以耦合到不同的终止电抗以改变诸如方向性和角波束宽度的波束特性。 可以使用处理来选择要使用的终止电抗。 因此，通过使用射频（RF），中频（IF）或更高的频率，可以更容易地将天线的辐射器模式引向特定目标接收器/发射器，降低信噪比干扰电平和/或增加增益 基带处理。 可以采用多输入多输出（MIMO）处理技术来操作具有同时波束图案的天线组件。

    Multi-band antenna for wireless applications
    58.
    发明申请
    Multi-band antenna for wireless applications 失效
    用于无线应用的多频带天线

    公开(公告)号：US20050057410A1

    公开(公告)日：2005-03-17

    申请号：US10895813

    申请日：2004-07-20

    申请人： Bing Chiang ,  Michael Lynch ,  Douglas Wood

    发明人： Bing Chiang ,  Michael Lynch ,  Douglas Wood

    IPC分类号： H01Q1/24 ,  H01Q5/00 ,  H01Q5/357 ,  H01Q5/364 ,  H01Q9/40 ,  H01Q9/42 ,  H01Q11/02

    CPC分类号： H01Q1/243 ,  H01Q5/357 ,  H01Q5/364 ,  H01Q9/40 ,  H01Q9/42

    摘要： A folded monopole antenna that supports lower and upper frequency bands may be used in CDMA, WLAN, or other wireless communications systems. The folded monopole antenna may be located in a handset next to a vertical ground plane. The folded monopole antenna may be folded at least twice and connected to the ground plane through a reactance. The dimensions of different sections of the folded monopole antenna define lower and upper frequency band characteristics, and an offset location of an input feed affects the bandwidth of the frequency bands. The reactance between the antenna and ground plane can be selected to fine tune the frequency bands. Various input feeds, including a co-planar waveguide, may be employed. Dynamically adjustable reactances may be used in the input feed and ground line for adapting the antenna to various environments.

    摘要翻译： 支持较低和较高频带的折叠式单极天线可用于CDMA，WLAN或其他无线通信系统。 折叠的单极天线可以位于靠近垂直接地平面的手机中。 折叠的单极天线可以折叠至少两次，并通过电抗连接到接地平面。 折叠单极天线的不同部分的尺寸限定较低和较高的频带特性，并且输入馈送的偏移位置影响频带的带宽。 可以选择天线和接地平面之间的电抗来微调频带。 可以采用包括共面波导在内的各种输入馈送。 可以在输入进给和接地线中使用动态可调电抗，以使天线适应各种环境。

    Folding directional antenna
    59.
    发明授权
    Folding directional antenna 有权
    折叠定向天线

    公开(公告)号：US06774852B2

    公开(公告)日：2004-08-10

    申请号：US10288256

    申请日：2002-11-04

    申请人： Bing Chiang ,  William R. Palmer ,  Griffin K. Gothard ,  Christopher A. Snyder

    发明人： Bing Chiang ,  William R. Palmer ,  Griffin K. Gothard ,  Christopher A. Snyder

    IPC分类号： H01Q138

    CPC分类号： H01Q1/08 ,  H01Q1/084 ,  H01Q1/085 ,  H01Q1/241 ,  H01Q1/242 ,  H01Q1/38 ,  H01Q3/01 ,  H01Q3/20 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q19/32 ,  H01Q21/061 ,  H01Q21/20

    摘要： An antenna array formed on a deformable dielectric material or substrate includes a center element and plurality of radial elements extending from a center hub. In the operative mode, the radial elements are folded upwardly into an approximately vertical position, with the center element at the center of the hub and the radial elements circumferentially surrounding the center element. In one embodiment the center element serves an active element of the antenna array and the radial elements are controllable in a directive or reflective state to effect a directive beam pattern from the antenna array. When not in use, the antenna elements are deformed into a plane and can therefore be integrated into a housing for compact storage. In a phased array embodiment, the center element is absent and the plurality of radial elements, are controllable to steer the antenna beam.

    摘要翻译： 形成在可变形电介质材料或衬底上的天线阵列包括中心元件和从中心毂延伸的多个径向元件。 在操作模式中，径向元件向上折叠成大致垂直的位置，中心元件位于毂的中心，而径向元件周向围绕中心元件。 在一个实施例中，中心元件用于天线阵列的有源元件，并且径向元件可以以指示或反射状态控制，以实现来自天线阵列的指向波束图案。 当不使用时，天线元件变形成平面，因此可以集成到壳体中以进行紧凑的存储。 在相控阵实施例中，中心元件不存在并且多个径向元件是可控的以引导天线波束。