Patents by Inventor Damiao WU

Damiao WU 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).

  • Cavity resonator, filter, and communications device
    Patent number: 10978775
    Abstract: Examples of cavity resonators, filters, and communications devices are described. One example of cavity resonator includes a cover, a resonant column, and a cavity. The cover is mounted at an opening of a top portion of the cavity. The resonant column is disposed at a bottom portion of the cavity. A value of distributed capacitance is changed with a distance between the cover and the resonant column, a value of distributed inductance is changed with a distance between the cavity and the resonant column, and a material of at least one of the cover, the resonant column, and the cavity is a plastic metal material. Therefore, when the at least one of the cover, the resonant column, or the cavity deforms, the value of the distributed capacitance or the distributed inductance is changed, to adjust a resonant frequency.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: April 13, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Damiao Wu, Zheng Cui, Huanqing Zhang, Yuntao Zhu
  • CAVITY RESONATOR, FILTER, AND COMMUNICATIONS DEVICE
    Publication number: 20190334222
    Abstract: Examples of cavity resonators, filters, and communications devices are described. One example of cavity resonator includes a cover, a resonant column, and a cavity. The cover is mounted at an opening of a top portion of the cavity. The resonant column is disposed at a bottom portion of the cavity. A value of distributed capacitance is changed with a distance between the cover and the resonant column, a value of distributed inductance is changed with a distance between the cavity and the resonant column, and a material of at least one of the cover, the resonant column, and the cavity is a plastic metal material. Therefore, when the at least one of the cover, the resonant column, or the cavity deforms, the value of the distributed capacitance or the distributed inductance is changed, to adjust a resonant frequency.
    Type: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Inventors: Damiao WU, Zheng CUI, Huanqing ZHANG, Yuntao ZHU