Patents by Inventor Kwak-Won Il

Kwak-Won Il 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).

  • Multi-layered multi-band antenna
    Patent number: 7053837
    Abstract: The present invention provides an multi-layered multi-band antenna used for a communication apparatus for a mobile communication service, comprising: a PCB having power supply and ground portions; an upper plane antenna separated from an upper plane of the PCB, the upper plane antenna consisting of a metal conductor having a predetermined pattern formed with a U-shaped slot; an intermediate plane antenna interposed between the upper plane antenna and the PCB in parallel with the upper plane antenna, the intermediate plane antenna consisting of a metal conductor having a predetermined pattern formed with a U-shaped slot; a power supply metal conductor having the one side connected to a power supply portion of the PCB and the other side connected to one side of the intermediate plane antenna; a ground metal conductor having the one side connected to a ground portion of the PCB and the other side connected to one side of the intermediate plane antenna; and a plurality of short-circuiting metal conductors interpo
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: May 30, 2006
    Assignee: Information and Communication University Educational Foundation
    Inventors: Kwak-Won Il, Seong-Ook Park
  • Multi-layered multi-band antenna
    Publication number: 20050253758
    Abstract: The present invention provides an multi-layered multi-band antenna used for a communication apparatus for a mobile communication service, comprising: a PCB having power supply and ground portions; an upper plane antenna separated from an upper plane of the PCB, the upper plane antenna consisting of a metal conductor having a predetermined pattern formed with a U-shaped slot; an intermediate plane antenna interposed between the upper plane antenna and the PCB in parallel with the upper plane antenna, the intermediate plane antenna consisting of a metal conductor having a predetermined pattern formed with a U-shaped slot; a power supply metal conductor having the one side connected to a power supply portion of the PCB and the other side connected to one side of the intermediate plane antenna; a ground metal conductor having the one side connected to a ground portion of the PCB and the other side connected to one side of the intermediate plane antenna; and a plurality of short-circuiting metal conductors interpo
    Type: Application
    Filed: November 9, 2004
    Publication date: November 17, 2005
    Applicant: Information and Communication University Educational Foundation
    Inventors: Kwak-Won Il, Seong-Ook Park