Patents by Inventor Changkun Park

Changkun Park 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).

  • Transmission line transformer
    Publication number: 20060232355
    Abstract: A transmission line transformer is disclosed. The transformer improves efficiency and a dynamic range of a power amplifier. The transformer is formed to have a plurality of load impedances as the primary side of the transmission line transformer is separated to form a plurality of primary transmission lines with parasitic components which are different from each other. The transformer is used as an impedance matching circuit of the power amplifier requiring a plurality of load impedances.
    Type: Application
    Filed: April 10, 2006
    Publication date: October 19, 2006
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Changkun Park, Younsuk Kim, Songcheol Hong