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    CROSS-DIPOLE RADIATING ELEMENTS HAVING FREQUENCY SELECTIVE SURFACES AND BASE STATION ANTENNAS HAVING SUCH RADIATING ELEMENTS
    33.
    发明公开
    CROSS-DIPOLE RADIATING ELEMENTS HAVING FREQUENCY SELECTIVE SURFACES AND BASE STATION ANTENNAS HAVING SUCH RADIATING ELEMENTS 审中-公开

    公开(公告)号：US20240006777A1

    公开(公告)日：2024-01-04

    申请号：US18339317

    申请日：2023-06-22

    Applicant: CommScope Technologies LLC

    Inventor： Haifeng Li ,  Peter J. Bisiules

    IPC: H01Q21/24 ,  H01Q19/10 ,  H01Q9/16 ,  H01Q1/24

    CPC classification number: H01Q21/24 ,  H01Q1/246 ,  H01Q9/16 ,  H01Q19/108

    Abstract: Antennas include a first radiating element that is configured to operate in a first operating frequency band, and a second radiating element that is configured to operate in a second operating frequency band that encompasses higher frequencies than the first operating frequency band. The first radiating element includes a first dipole radiator having first and second dipole arms and a second dipole radiator having third and fourth dipole arms. The first dipole arm includes a first metal region that substantially surrounds a first non-metal interior region, and the first non-metal interior region is configured so that currents induced on a first portion of the first metal region by RF energy emitted by the second radiating element substantially cancel currents induced on a second portion of the first metal region by the RF energy emitted by the second radiating element.

    PRINTED CIRCUIT BOARD, CALIBRATION BOARD AND BASE STATION ANTENNA
    37.
    发明申请
    PRINTED CIRCUIT BOARD, CALIBRATION BOARD AND BASE STATION ANTENNA 有权

    公开(公告)号：US20210289625A1

    公开(公告)日：2021-09-16

    申请号：US17190701

    申请日：2021-03-03

    Applicant: CommScope Technologies LLC

    Inventor： Xiaotuo Wang ,  Xun Zhang ,  Hangsheng Wen ,  Haifeng Li

    IPC: H05K1/11 ,  H05K1/02 ,  H01P3/08

    Abstract: Printed circuit boards suitable for base station antennas have a first through hole for receiving a conductor of an electrical connector and a first conductive trace for electrical connection with the conductor to transmit signals. The first conductive trace is provided on a first side of the printed circuit board and the electrical connector is located on the same side of the first conductive trace when mounted on the printed circuit board. The conductor is electrically connected to the first conductive trace via a bypass provided on a second side of the printed circuit board, opposite to the first side. The printed circuit board can be provided for a base station antenna that includes a calibration board including the printed circuit board. The printed circuit board can facilitate the good positioning of the electrical connector thereon, the good electrical performances, or can avoid a possible short circuit.

    Phase shifter assembly
    38.
    发明授权
    Phase shifter assembly 有权

    公开(公告)号：US10424839B2

    公开(公告)日：2019-09-24

    申请号：US15752431

    申请日：2016-08-25

    Applicant: CommScope Technologies LLC

    Inventor： Yuemin Li ,  Hangsheng Wen ,  Haifeng Li

    IPC: H01P1/18 ,  H01Q1/24 ,  H01Q3/32

    Abstract: The present invention provides a phase shifter assembly for an array antenna, comprising: a first level phase shifter, wherein the first level phase shifter is configured to control the phases of a plurality of sub-arrays of the array antenna, where each sub-array comprises one or more radiating elements; a second level phase shifter, wherein the second level phase shifter is configured to proportionally change the phases of the radiating elements in the corresponding sub-arrays; and a power divider, wherein the power divider is connected between the first level phase shifter and the second level phase shifter. The phase shifter assembly has the advantages of both a distributed phase shifter network and a lumped phase shifter network. Specifically, the phase shifter assemblies can independently control the phases of the radiating elements in the array to obtain better sidelobe suppression. Further, phase control parts of the phase shifter are concentrated within a certain physical space range, so the size of the phase shifter assembly may be greatly decreased, and the cost may be greatly reduced, as compared with a conventional distributed phase shifter assembly design.

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