Patents by Inventor Seahee Hwangbo

Seahee Hwangbo 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).

  • Publication number: 20190173147
    Abstract: Various examples related to metaconductor based skins and transmission lines are provided. In one example, a flexible metaconductor skin includes a flexible substrate; at least one layer of non-ferromagnetic metal disposed on the flexible substrate; and a layer of ferromagnetic metal disposed on the at least one layer of non-ferromagnetic metal. The flexible metaconductor skin can be used as a multi-layer coplanar waveguide (CPW) transmission line.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Inventors: Yong-Kyu Yoon, Todd R. Schumann, Hyup-Jong Kim, Seahee Hwangbo
  • Publication number: 20190115671
    Abstract: Various examples are provided that are related to fractal-based reactive impedance surfaces. These surfaces allow for miniaturization of antennas. In one example, a fractal rectangular reactive impedance surface (FR-RIS) includes a plurality of fractal rectangular (FR) patches having an outer edge defined by a fractal rectangular pattern that is repeated along each side of inner FR patches of the plurality of FR patches. The fractal rectangular pattern of a FR patch matches with the fractal rectangular pattern of an adjacent FR patch. An antenna can include a planar antenna disposed over the FR-RIS.
    Type: Application
    Filed: April 14, 2017
    Publication date: April 18, 2019
    Applicants: University of Florida Research Foundation, Inc., Electronics and Telecommunications Research Institute (ETRI)
    Inventors: YONG KYU YOON, SEAHEE HWANGBO, HAE YONG YANG
  • Publication number: 20190051972
    Abstract: Various examples are provided for glass interposer integrated antennas for intrachip, interchip and board communications. In one example, a reflector through-glass via (TGV) antenna includes a TGV or group of TGVs extending through a glass substrate. The TGV can extend from a feeding line disposed on a first side of the glass substrate to a loading disc disposed on a second side of the glass substrate. An array of reflector pillars extending through the glass substrate from a ground plane on the first side of the glass substrate to the second side of the glass substrate can also be provided with the array of reflector pillars distributed beyond an outer edge of the loading disc. The TGV antenna can be implemented as a dual mode design and excited at a first frequency to generate an omni-directional radiation pattern and at a second frequency to generate a broadside radiation pattern.
    Type: Application
    Filed: October 18, 2018
    Publication date: February 14, 2019
    Inventors: SEAHEE HWANGBO, YONG KYU YOON
  • Publication number: 20180165526
    Abstract: Various examples are provided for smart transportation and sensing systems. In one example, an apparatus for smart transportation sensing includes a reflector integrated in a contoured roadway unit configured to protect the reflector from damage by vehicles traveling along a transportation surface; and a radio frequency identification (RFID) tag integrated in the contoured roadway unit. In another example, a system for smart transportation includes a vehicle including a radio frequency identification (RFID) reader configured to interrogate RFID tags integrated in reflector units disposed along a transportation surface; and a processing system in communication with the RFID reader, the processing system configured to process data obtained from at least one of the RFID tags to determine vehicle location along the transportation surface.
    Type: Application
    Filed: December 8, 2017
    Publication date: June 14, 2018
    Inventors: Yong Kyu Yoon, Sheng-Po Fang, Seahee Hwangbo, Todd R. Schumann