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    METHODS AND APPARATUSES FOR MEASURING THE DISTANCE TO A PASSIVE INTERMODULATION SOURCE
    4.
    发明申请
    METHODS AND APPARATUSES FOR MEASURING THE DISTANCE TO A PASSIVE INTERMODULATION SOURCE 审中-公开

    公开(公告)号：WO2019169088A1

    公开(公告)日：2019-09-06

    申请号：PCT/US2019/019978

    申请日：2019-02-28

    Applicant: COMMSCOPE TECHNOLOGIES LLC

    Inventor： VELLA-COLEIRO, George P. ,  HOU, XiaoHua

    IPC: H04B17/00 ,  G01R23/20 ,  G01R31/11 ,  H04B17/10 ,  H04B17/16 ,  H04B17/17 ,  H04B17/29

    Abstract: According to methods of performing measurements to determine a distance to a passive-intermodulation ("PIM") source, a first RF signal comprising a first frequency and a second RF signal comprising a second frequency may be applied to a device under test. A reference signal comprising a higher-order intermodulation-product of the first frequency and the second frequency may also be generated. An output signal from the device under test and the reference signal may be digitized and a calibration measurement may be applied. A phase difference between the device under test output and the reference signal may be determined. A plurality of phase differences may be determined for multiple first frequencies, and from the plurality of phase differences, a delay may be calculated, which may be multiplied by the velocity of propagation on the medium connecting the device under test to the test equipment to determine a distance to the PIM source.

    RECONFIGURABLE MULTI-BAND BASE STATION ANTENNAS HAVING SELF-CONTAINED SUB-MODULES
    7.
    发明申请
    RECONFIGURABLE MULTI-BAND BASE STATION ANTENNAS HAVING SELF-CONTAINED SUB-MODULES 审中-公开

    公开(公告)号：WO2020072880A1

    公开(公告)日：2020-04-09

    申请号：PCT/US2019/054661

    申请日：2019-10-04

    Applicant: COMMSCOPE TECHNOLOGIES LLC

    Inventor： PATEL, Sammit ,  KAISTHA, Amit ,  DENG, Gangyi ,  HOU, XiaoHua ,  TANG, Chengcheng ,  HUANG, Joy

    IPC: H01Q1/42 ,  H03G3/20 ,  H04L27/26

    Abstract: Base station antennas include a main module that has a first backplane that includes a first reflector. A vertically-extending array of first radiating elements is mounted to extend forwardly from the first reflector, and at least one first RF port is coupled to the vertically-extending array of first radiating elements. These antennas further include a sub-module that is attached to the first backplane. The sub-module includes a second backplane that has a second reflector that is separate from the first reflector. A vertically-extending array of second radiating elements is mounted to extend forwardly from the second reflector and is transversely spaced-apart from the vertically-extending array of first radiating elements. A plurality of second RF ports are coupled to the vertically-extending array of second radiating elements. The vertically-extending array of first radiating elements and the vertically-extending array of second radiating elements are configured to serve a common sector of a base station.

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