Repeaters for wireless communication systems
    4.
    发明授权
    Repeaters for wireless communication systems 有权
    无线通信系统中继器

    公开(公告)号:US07577398B2

    公开(公告)日:2009-08-18

    申请号:US10181109

    申请日:2001-01-16

    IPC分类号: H04B7/15

    摘要: A flat-panel repeater includes a housing having a pair of oppositely facing surfaces, at least one antenna element mounted to each of the surfaces for radiating energy in a direction opposite to that of an antenna element mounted to the other of the surfaces, and an electronic circuit mounted within the housing and operatively coupling signals between at least one antenna element on each of the oppositely facing surfaces of the module. Isolation between the antennas on opposite sides of the repeater is improved by various techniques, such as use of adaptive cancellation which removes a significant portion of the feedback signal power, therefore increasing the total system isolation by the same amount. This additional isolation can be used to achieve greater system gain, and therefore significantly extend the range of the system. The repeater may also include a beamforming arrangement for creating a desired antenna pattern of one antenna relative to a base station and a desired antenna pattern of the other antenna relative to subscriber equipment.

    摘要翻译: 平板中继器包括具有一对相对表面的壳体,至少一个天线元件安装到每个表面上,用于沿与安装到另一个表面的天线元件的方向相反的方向辐射能量,以及 电子电路安装在壳体内并且可操作地将信号耦合在模块的每个相对面的表面上的至少一个天线元件之间。 通过各种技术来改进中继器相对侧上的天线之间的隔离,例如使用去除反馈信号功率的相当大部分的自适应消除,从而将总系统隔离增加相同的量。 这种额外的隔离可以用于实现更大的系统增益,因此显着地扩展了系统的范围。 中继器还可以包括波束形成装置,用于相对于基站创建一个天线的期望天线方向图,并且相对于用户设备产生另一天线的期望天线方向图。

    Dynamically variable beamwidth and variable azimuth scanning antenna
    7.
    发明授权
    Dynamically variable beamwidth and variable azimuth scanning antenna 有权
    动态可变波束宽度和可变方位扫描天线

    公开(公告)号:US06963314B2

    公开(公告)日:2005-11-08

    申请号:US10255747

    申请日:2002-09-26

    IPC分类号: H01Q3/32 H01Q21/06 H01Q25/00

    摘要: A dynamically variable beamwidth and/or variable azimuth scanning antenna includes a plurality of active radiating columns and a plurality of continuously adjustable mechanical phase shifters. The columns define a beam having a beamwidth and an azimuth scan angle. Each phase shifter has an independent remotely controlled drive and is directly electrically connected to a respective radiating column. The phase shifters are independently operated to vary the beamwidth and/or azimuth scan angle of the beam defined by the plurality of active radiating columns.

    摘要翻译: 动态可变波束宽度和/或可变方位扫描天线包括多个有源辐射柱和多个可连续调节的机械移相器。 列定义具有波束宽度和方位角扫描角度的波束。 每个移相器具有独立的遥控驱动器,并且直接电连接到相应的辐射柱。 移相器被独立地操作以改变由多个有源辐射柱限定的光束的波束宽度和/或方位角扫描角度。

    WIDEBAND DUAL POLARIZED ANTENNA ARRAY SYSTEM

    公开(公告)号:US20210151873A1

    公开(公告)日:2021-05-20

    申请号:US16689278

    申请日:2019-11-20

    申请人: Mano D. Judd

    发明人: Mano D. Judd

    IPC分类号: H01Q1/52 H01Q1/24 H01Q1/38

    摘要: A wideband dual polarized antenna array system, with minimal number of RF ports that enables wideband array frequency ratios of 25:1 to 120:1. Reduced grating lobe performance is enabled by employing antennas-within-antennas. Orientation and spacing of antennas in novel methodologies further reduces sidelobes and grating lobes. Finally, this technology reduces the number of RF ports, compared to Tightly Coupled Dipole Antenna (TCDA) arrays by 10× to 25× times.

    Antenna structure and installation
    9.
    发明授权
    Antenna structure and installation 有权
    天线结构和安装

    公开(公告)号:US06583763B2

    公开(公告)日:2003-06-24

    申请号:US09299850

    申请日:1999-04-26

    申请人: Mano D. Judd

    发明人: Mano D. Judd

    IPC分类号: H04B708

    摘要: A distributed antenna array includes a plurality of antenna elements and a plurality of power amplifiers, each power amplifier being operatively coupled with one of the antenna elements and mounted closely adjacent to the associated antenna element, such that no appreciable power loss occurs between the power amplifier and the associated antenna element. Each power amplifier is a relatively low power, relatively low cost per watt linear power amplifier chip. The antenna array may be used in various installations, including cellular, PCS, MMDS, LMDS and in-building communication systems such as LANS or WLANS.

    摘要翻译: 分布式天线阵列包括多个天线元件和多个功率放大器,每个功率放大器可操作地与天线元件之一耦合并且紧密地安装在相关联的天线元件上,使得功率放大器之间不会出现明显的功率损耗 和相关联的天线元件。 每个功率放大器是相对较低的功率,相对低成本的每瓦线性功率放大器芯片。 天线阵列可以用在各种安装中,包括蜂窝,PCS,MMDS,LMDS和建筑物内通信系统,如LANS或WLANS。