Patents by Inventor Yunzhang Zhao

Yunzhang Zhao 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: 20250130262
    Abstract: The present disclosure provides a single-channel test device. The single-channel test device includes a metal flange, and a waveguide-coaxial conversion structure and a first square straight waveguide which are disposed along a central axis of the metal flange and disposed on two opposite sides of the metal flange respectively, wherein in the case that a waveguide aperture of one end of the first square straight waveguide distal to the metal flange is placed on and is kept in close contact with a single antenna unit to be tested in a phased reflectarray to be tested, the single-channel test device is configured to test a scattering parameter of the antenna unit to be tested.
    Type: Application
    Filed: September 20, 2022
    Publication date: April 24, 2025
    Inventors: Liangrong GE, Sheng CHEN, Meng WEI, Yuanlong YANG, Zhifeng ZHANG, Chuncheng CHE, Yuanfu LI, Xueyan SU, Yunzhang ZHAO, Feng QU, Xiaoyong WANG, Xiaobo WANG
  • Publication number: 20250076518
    Abstract: Provided is a method for tracking a satellite. The method includes: acquiring trajectory information and antenna attitude information of a COTM device; calculating a theoretical pointing angle of an antenna beam for a target satellite based on an orbit parameter of the target satellite and the trajectory information; acquiring an actual pointing angle of the antenna beam by correcting, based on the antenna attitude information, the theoretical pointing angle of the antenna beam; controlling, based on the actual pointing angle of the antenna beam, a receiving phased array antenna to form an antenna beam; acquiring data information of the satellite signal, and correcting an actual pointing angle of the current antenna beam; controlling a transmitting phased array antenna to form an antenna beam based on a corrected actual pointing angle; establishing a communication link and updating ephemeris data of the target satellite.
    Type: Application
    Filed: March 8, 2024
    Publication date: March 6, 2025
    Inventors: Rudan JIANG, Long MIAO, Xueyan SU, Meng WEI, Dongyao WANG, Yunzhang ZHAO, Zhifeng ZHANG
  • Publication number: 20240275011
    Abstract: The present application provides an adjustable radio frequency unit, a filter, and an electronic device. The adjustable radio frequency unit includes a first tunable dielectric layer and a second tunable dielectric layer; a first conductive layer located between the first tunable dielectric layer and the second tunable dielectric layer; a second conductive layer located on the side, away from the first conductive layer, of the first tunable dielectric layer; and a third conductive layer located on the side, away from the first conductive layer, of the second tunable dielectric layer; wherein orthographic projections of the first conductive layer, the second conductive layer and the third conductive layer on the first tunable dielectric layer at least partially overlap with one another. The adjustable radio frequency unit has the characteristic of passband adjustability and with high adjustment precision, good controllability, wide working frequency range, and low loss and cost.
    Type: Application
    Filed: June 14, 2022
    Publication date: August 15, 2024
    Applicants: Beijing BOE Sensor Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yuanlong Yang, Chuncheng Che, Jing Pang, Feng Qu, Zhifeng Zhang, Sheng Chen, Meng Wei, Xueyan Su, Yunzhang Zhao, Liangrong Ge, Yuanfu Li