Patents by Inventor Chen Shuguang

Chen Shuguang 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).

  • Waveguide phased array antenna apparatus
    Patent number: 6028552
    Abstract: A phase shifter for controlling a phase of a propagating wave from a distributing waveguide to an array of radiating waveguides is disclosed. The phase shifter includes a distributed-constant line coupling the distributing waveguide to the radiating waveguide and a plurality of distributed-constant circuits each providing a different phase-shift characteristic. A micro machine switch selectively connects the distributed-constant circuits to the distributed-constant line depending on a control signal received from outside.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: February 22, 2000
    Assignee: NEC Corporation
    Inventor: Chen Shuguang