Patents by Inventor Sang II Kwak

Sang II Kwak 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).

  • Antenna system having electromagnetic bandgap
    Publication number: 20090201212
    Abstract: An antenna system includes an antenna transmitting and receiving a signal; a power feeding line feeding electric power to the antenna; and a metal conductor ground electrically connected to the power feeding line. Further, the metal conductor ground includes an electromagnetic bandgap.
    Type: Application
    Filed: December 17, 2008
    Publication date: August 13, 2009
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dong-Uk Sim, Jong Hwa Kwon, Sang II Kwak, Hyung Do Choi