Patents by Inventor Canrong Dai

Canrong Dai 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).

  • Phase shifter, antenna system, and communications device
    Patent number: 11545756
    Abstract: A phase shifter includes a radio frequency input transmission line, a radio frequency output transmission line, and a first branch and a second branch coupled in parallel between the radio frequency input transmission line and the radio frequency output transmission line, the first branch includes first switch components and first transmission lines coupled in series, and the second branch includes a second transmission line including a first terminal coupled to the radio frequency input transmission line and a second terminal, a third transmission line including a third terminal coupled to the second terminal and a fourth terminal coupled to the radio frequency output transmission line, second switch components, where one terminal of each of the second switch components is coupled to a connection node of the second transmission line and the third transmission line, and the other terminal is coupled to a corresponding grounding component.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: January 3, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Meiqing Qi, Canrong Dai, Xiaofei Wei
  • Phase Shifter, Antenna System, and Communications Device
    Publication number: 20210098886
    Abstract: A phase shifter includes a radio frequency input transmission line, a radio frequency output transmission line, and a first branch and a second branch coupled in parallel between the radio frequency input transmission line and the radio frequency output transmission line, the first branch includes first switch components and first transmission lines coupled in series, and the second branch includes a second transmission line including a first terminal coupled to the radio frequency input transmission line and a second terminal, a third transmission line including a third terminal coupled to the second terminal and a fourth terminal coupled to the radio frequency output transmission line, second switch components, where one terminal of each of the second switch components is coupled to a connection node of the second transmission line and the third transmission line, and the other terminal is coupled to a corresponding grounding component.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Meiqing Qi, Canrong Dai, Xiaofei Wei