Patents by Inventor Zhanfu Li

Zhanfu 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).

  • Publication number: 20240421473
    Abstract: Provided in the embodiments of the present disclosure are a low frequency radiation unit, an antenna, a multi-frequency shared antenna, and a fusion antenna architecture. The low frequency radiation unit is disposed on a side of a metal reflection plate, and includes a Printed Circuit Board (PCB) dielectric plate 10, a medium support frame 70, a coaxial cable 80, and metal radiators provided on a front side and back side of 10. 70 is connected to the metal radiators, and is configured to support the metal radiators. 80 is disposed on 70, is connected to the metal radiators, and feeds the metal radiators. Such that a 4G low frequency antenna is flexibly disposed above a 5G high frequency antenna, thereby avoiding interference of Balun with the 5G high frequency antenna; and low mutual coupling is achieved, such that internal space of an antenna is saved.
    Type: Application
    Filed: October 9, 2022
    Publication date: December 19, 2024
    Inventors: Ruikang LIAO, Li BU, Te SHAO, Rongli WANG, Shengwei KONG, Xigang XIONG, Shuiping LIU, Xiang GAO, Lei SUN, Mingding LI, Zhibin LIN, Can FU, Zhanfu LI
  • Patent number: 9570801
    Abstract: A device for reducing interference among antennas of multiple base stations is provided, which includes an antenna module placed on a base station and configured to transmit and receive radio waves, a holding pole placed on the base station and configured to support the antenna module, a mounting bracket coupled to the antenna module and the holding pole, and a shielding apparatus placed on the holding pole or the antenna module and capable of being adjusted in directions. The device has a simple structure; it is easy to manufacture and install the device; it can be applied to the base station's antennas in network use. In addition, the device can efficiently increase isolation and reduce interferences among the antennas of the multiple base stations.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: February 14, 2017
    Assignee: ZTE Corporation
    Inventors: Lijuan Zhao, Nan Shen, Zhanfu Li, Xianming Zhao
  • Publication number: 20150372379
    Abstract: A device for reducing interference among antennas of multiple base stations is provided, which includes an antenna module placed on a base station and configured to transmit and receive radio waves, a holding pole placed on the base station and configured to support the antenna module, a mounting bracket coupled to the antenna module and the holding pole, and a shielding apparatus placed on the holding pole or the antenna module and capable of being adjusted in directions. The device has a simple structure; it is easy to manufacture and install the device; it can be applied to the base station's antennas in network use. In addition, the device can efficiently increase isolation and reduce interferences among the antennas of the multiple base stations.
    Type: Application
    Filed: August 29, 2013
    Publication date: December 24, 2015
    Applicant: ZTE CORPORATION
    Inventors: Lijuan Zhao, Nan Shen, Zhanfu Li, Xianming Zhao