Patents by Inventor Hong Hui Li

Hong Hui Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Calibration circuits for beam-forming antennas and related base station antennas
    Patent number: 11411661
    Abstract: A base station antenna includes a backplane and a plurality of radiating elements that extend forwardly from the backplane. The antenna further includes a plurality of feed boards, and each of the feed boards has a respective group of one or more of the radiating elements mounted thereon. The antenna also includes a calibration port and a calibration circuit that has a calibration combiner that has an output that is coupled to the calibration port and a plurality of directional couplers that are coupled to the calibration combiner. At least a first portion of a first of the first directional couplers is implemented on a first of the feed boards.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: August 9, 2022
    Assignee: CommScope Technologies LLC
    Inventors: Hong Hui Li, Martin Zimmerman, Bo Wu, Ligang Wu
  • CALIBRATION CIRCUITS FOR BEAM-FORMING ANTENNAS AND RELATED BASE STATION ANTENNAS
    Publication number: 20210028871
    Abstract: A base station antenna includes a backplane and a plurality of radiating elements that extend forwardly from the backplane. The antenna further includes a plurality of feed boards, and each of the feed boards has a respective group of one or more of the radiating elements mounted thereon. The antenna also includes a calibration port and a calibration circuit that has a calibration combiner that has an output that is coupled to the calibration port and a plurality of directional couplers that are coupled to the calibration combiner. At least a first portion of a first of the first directional couplers is implemented on a first of the feed boards.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 28, 2021
    Inventors: Hong Hui Li, MARTIN ZIMMERMAN, BO WU, LIGANG WU
  • Calibration circuits for beam-forming antennas and related base station antennas
    Patent number: 10812200
    Abstract: A base station antenna includes a backplane and a plurality of radiating elements that extend forwardly from the backplane. The antenna further includes a plurality of feed boards, and each of the feed boards has a respective group of one or more of the radiating elements mounted thereon. The antenna also includes a calibration port and a calibration circuit that has a calibration combiner that has an output that is coupled to the calibration port and a plurality of directional couplers that are coupled to the calibration combiner. At least a first portion of a first of the first directional couplers is implemented on a first of the feed boards.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 20, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Hong Hui Li, Martin L. Zimmerman, Bo Wu, Ligang Wu
  • CALIBRATION CIRCUITS FOR BEAM-FORMING ANTENNAS AND RELATED BASE STATION ANTENNAS
    Publication number: 20190334636
    Abstract: A base station antenna includes a backplane and a plurality of radiating elements that extend forwardly from the backplane. The antenna further includes a plurality of feed boards, and each of the feed boards has a respective group of one or more of the radiating elements mounted thereon. The antenna also includes a calibration port and a calibration circuit that has a calibration combiner that has an output that is coupled to the calibration port and a plurality of directional couplers that are coupled to the calibration combiner. At least a first portion of a first of the first directional couplers is implemented on a first of the feed boards.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Inventors: Hong Hui Li, Martin L. Zimmerman, Bo Wu, Ligang Wu