Patents by Inventor Jung-Keun Oo

Jung-Keun Oo 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 with overlapping first and second U-shaped patterns
    Patent number: 8933766
    Abstract: A feeding system for providing a power using metal patterns having ‘U’ shape is disclosed. A phase shifter as the feeding system includes a first substrate, a first pattern as a conductor disposed on the first substrate, a second substrate separated from the first substrate and a second pattern as a conductor disposed on the second substrate. Here, the first pattern is overlapped with the second pattern, and electrical length of overlapped part of the patterns changes in case of changing phase of an RF signal outputted from the phase shifter.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: January 13, 2015
    Assignee: Ace Technologies Corporation
    Inventors: Jung-Keun Oo, Min-Seok Jung, Battalov Ilnar
  • N PORT FEEDING SYSTEM, AND PHASE SHIFTER AND DELAY DEVICE INCLUDED IN THE SAME
    Publication number: 20120098619
    Abstract: A feeding system for providing a power using metal patterns having ‘U’ shape is disclosed. A phase shifter as the feeding system includes a first substrate, a first pattern as a conductor disposed on the first substrate, a second substrate separated from the first substrate and a second pattern as a conductor disposed on the second substrate. Here, the first pattern is overlapped with the second pattern, and electrical length of overlapped part of the patterns changes in case of changing phase of an RF signal outputted from the phase shifter.
    Type: Application
    Filed: July 2, 2009
    Publication date: April 26, 2012
    Applicant: ACE TECHNOLOGIES CORPORATION
    Inventors: Jung-Keun Oo, Min-Seok Jung, Battalov Ilnar