公开(公告)号：US20210384616A1

公开(公告)日：2021-12-09

申请号：US17280960

申请日：2019-10-04

Applicant: CommScope Technologies LLC

Inventor： Sammit Patel ,  Amit Kaistha ,  Gangyi Deng ,  XiaoHua Hou ,  Chengcheng Tang ,  Joy Huang

IPC: H01Q1/24 ,  H01Q1/42 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q21/28 ,  H01Q25/00 ,  H01Q5/42 ,  H01Q19/10

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.

公开(公告)号：US20210305684A1

公开(公告)日：2021-09-30

申请号：US17218586

申请日：2021-03-31

Applicant: CommScope Technologies LLC

Inventor： XiaoHua Hou ,  Yongjie Xu ,  Xiang Li ,  Peter J. Bisiules ,  Samantha Merta ,  Haifeng Li ,  Mohammad Vatankhah Varnoosfaderani ,  Bo Wu ,  Xiaohua Tian ,  Junfeng Yu ,  Dongmin Wang ,  Shanguang Zhang ,  Jian Liu

IPC: H01Q1/24 ,  H01Q19/10 ,  H01Q1/42 ,  H01Q21/06

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

公开(公告)号：US20210126351A1

公开(公告)日：2021-04-29

申请号：US17077388

申请日：2020-10-22

Applicant: CommScope Technologies LLC

Inventor： XiaoHua Hou

IPC: H01Q1/24 ,  H01Q21/08 ,  H01Q3/36 ,  H01Q3/32

Abstract: An integrated base station antenna includes a feed board having a plurality of columns of radiating elements mounted thereon and a plurality of phase shifters coupled to the plurality of columns of radiating elements mounted on a same side of the feed board as the plurality of columns of radiating elements.

公开(公告)号：US20210099239A1

公开(公告)日：2021-04-01

申请号：US17121881

申请日：2020-12-15

Applicant: CommScope Technologies LLC

Inventor： George P. Vella-Coleiro ,  XiaoHua Hou

IPC: H04B17/00 ,  H04B3/46 ,  H04B17/30 ,  H04B17/15 ,  H04B17/29 ,  H04B17/16 ,  H04B17/10 ,  H04B17/17 ,  G01R23/20

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.

公开(公告)号：US10009121B2

公开(公告)日：2018-06-26

申请号：US15491069

申请日：2017-04-19

Applicant: CommScope Technologies LLC

Inventor： George P. Vella-Coleiro ,  XiaoHua Hou

IPC: H04B1/00 ,  H04B17/00 ,  G01R23/20 ,  H04B1/707

CPC classification number: H04B17/00 ,  G01R23/20 ,  H04B1/707 ,  H04B17/0085

Abstract: According to methods of performing a passive inter-modulation distortion (“PID”) test, a first excitation signal and a second excitation signal are applied to a device under test, where at least one of the first and second excitation signals is a spread spectrum excitation signal. An output signal is received that includes a PID signal generated from mixing of the first and second excitation signals. At least a portion of the output signal is de-spread. A characteristic of the PID signal may then be measured.