Patents by Inventor Yunk-Chia Chou

Yunk-Chia Chou 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).

  • PHASE SHIFTER
    Publication number: 20100156557
    Abstract: A phase shifter includes a substrate, an input part, a plurality of first transmission lines, a plurality of second transmission lines, a coupling part, a controller, and a plurality of output parts. When a signal is fed in a first transmission line, the fed signal is distributed to a corresponding second transmission line via the first transmission line, and an area of the second transmission line shielded by the coupling part is changed by rotating the coupling part through the controller, so as to shift a phase of the signal transmitted by the second transmission line.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 24, 2010
    Applicant: SMARTANT TELECOM CO., LTD.
    Inventors: Dau-Chyrh CHANG, Bing-Hao Zeng, Ji-Chyun Liu, Yunk-Chia Chou, Kang-Kuei Liu