Patents by Inventor Xianfeng Tang

Xianfeng Tang 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: 20230318166
    Abstract: This disclosure provides a radio frequency chip, a signal transceiver, and a communication device. The radio frequency chip includes: a chip; a coupling structure, including: a resonator, where a resonant cavity is formed, and an inner wall of the resonant cavity is made of metal; a redistribution layer, arranged above the resonant cavity and including an redistribution layer (RDL) dielectric layer; a radiator, made of metal, formed into a centro-symmetric shape, arranged on a surface that is of the dielectric layer and that faces the resonator, and accommodated in the resonant cavity; a feeder, where one end of the feeder is connected to the chip, and the other end is inserted into the resonant cavity; a packaging structure, configured to package the chip and cover the redistribution layer, so that a signal generated by the chip can be efficiently coupled to a polymer transmission line.
    Type: Application
    Filed: March 7, 2023
    Publication date: October 5, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Luqi Zhang, Kun Li, Xianfeng Tang, Yanxing Luo
  • Publication number: 20230289646
    Abstract: A quantum chip and a quantum computer are disclosed to resolve problems such as high difficulty in preparing the quantum chip and a low yield rate. The quantum chip provided in the present disclosure includes a substrate, M subchips, a coupling structure, and a cavity mode suppression structure. Each subchip includes N quantum bits, and the M subchips are spaced apart on a surface of the substrate. The coupling structure is configured to implement an interconnection between the M subchips. The cavity mode suppression structure is disposed on an edge of each subchip and/or in a gap between the M subchips, and is configured to increase a cavity mode frequency of the quantum chip. In the quantum chip provided in the present disclosure, the quantum chip includes the M subchips, so that preparation difficulty is effectively reduced and a preparation yield rate is improved.
    Type: Application
    Filed: May 23, 2023
    Publication date: September 14, 2023
    Inventors: Yanxing LUO, Peng ZHAO, Xianfeng TANG, Kunzhe DAI
  • Patent number: 11605901
    Abstract: A beam reconstruction method includes: generating or receiving a radio frequency signal, determining a to-be-adjusted beam angle, loading a voltage bias value on each liquid crystal metasurface array unit among a plurality of liquid crystal metasurface array units in a liquid crystal metasurface array based on the beam angle, and either emitting the generated radio frequency signal transmitted through the liquid crystal metasurface array or directing the received radio frequency signal through the liquid crystal metasurface array to a feed of an antenna. A lateral offset of a feed phase center is generated based on the voltage bias value after the radio frequency signal is transmitted through the liquid crystal metasurface array.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: March 14, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xianfeng Tang, Yu Liu, Kun Li
  • Publication number: 20210135358
    Abstract: A beam reconstruction method includes: generating or receiving a radio frequency signal, determining a to-be-adjusted beam angle, loading a voltage bias value on each liquid crystal metasurface array unit among a plurality of liquid crystal metasurface array units in a liquid crystal metasurface array based on the beam angle, and either emitting the generated radio frequency signal transmitted through the liquid crystal metasurface array or directing the received radio frequency signal through the liquid crystal metasurface array to a feed of an antenna. A lateral offset of a feed phase center is generated based on the voltage bias value after the radio frequency signal is transmitted through the liquid crystal metasurface array.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 6, 2021
    Inventors: Xianfeng TANG, Yu LIU, Kun LI
  • Patent number: 9583301
    Abstract: A metamaterial high-power microwave source relates to the fields of vacuum electronic technology, particle physics, and accelerators, including: a cathode, a metamaterial slow-wave structure (SWS), a waveguide and coaxial line coupler located at one end of the metamaterial SWS and a collector component located at the other end of the metamaterial SWS. The metamaterial SWS provided by the present invention is greatly smaller than a rectangular waveguide having the same frequency, so as to realize a miniaturization of devices and facilitate integration with semiconductor devices. The waveguide and coaxial line coupler has a good transmission characteristic and a low reflection in a relatively wide frequency band, which guarantees a high-efficient coupling output of a signal. Moreover, the metamaterial high-power microwave source has a high-power output and a pulsed output power reaching a megawatt level.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: February 28, 2017
    Assignee: University of Electronic Science and Technology of China
    Inventors: Zhaoyun Duan, Xianfeng Tang, Xinwu Ma, Xiang Huang, Zhanliang Wang, Tao Tang, Yanshuai Wang, Yubin Gong
  • Publication number: 20160126051
    Abstract: A metamaterial high-power microwave source relates to the fields of vacuum electronic technology, particle physics, and accelerators, including: a cathode, a metamaterial slow-wave structure (SWS), a waveguide and coaxial line coupler located at one end of the metamaterial SWS and a collector component located at the other end of the metamaterial SWS. The metamaterial SWS provided by the present invention is greatly smaller than a rectangular waveguide having the same frequency, so as to realize a miniaturization of devices and facilitate integration with semiconductor devices. The waveguide and coaxial line coupler has a good transmission characteristic and a low reflection in a relatively wide frequency band, which guarantees a high-efficient coupling output of a signal. Moreover, the metamaterial high-power microwave source has a high-power output and a pulsed output power reaching a megawatt level.
    Type: Application
    Filed: October 9, 2015
    Publication date: May 5, 2016
    Inventors: Zhaoyun Duan, Xianfeng Tang, Xinwu Ma, Xiang Huang, Zhanliang Wang, Tao Tang, Yanshuai Wang, Yubin Gong