Patents by Inventor Chanjoon Lee

Chanjoon Lee 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).

  • Fabry-Perot cavity antenna system having a frequency selective surface
    Patent number: 10777901
    Abstract: An antenna system may include a source antenna, a frequency selective surface (FSS), and a second antenna or a fluidic channel associated with a housing. In both examples, the FSS has a first side and a second side opposite from the first side. The first side includes horizontally oriented unit cells positioned as multiple columns of unit cells. The first side of the FSS faces the source antenna and is separated from the source antenna by a defined distance. The housing is positioned on the second side of the FSS. In the latter example, the fluidic channel of the housing includes one of air or deionized water. The fluidic channel is positioned on a portion of the second side of the FSS that is opposite to a subset of the horizontally oriented unit cells on the first side of the FSS.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: September 15, 2020
    Assignee: Regents of the University of Minnesota
    Inventors: Rhonda R. Franklin, Robert Sainati, Chanjoon Lee, Aditya Dave
  • FABRY-PEROT CAVITY ANTENNA SYSTEM HAVING A FREQUENCY SELECTIVE SURFACE
    Publication number: 20190245273
    Abstract: An antenna system may include a source antenna, a frequency selective surface (FSS), and a second antenna or a fluidic channel associated with a housing. In both examples, the FSS has a first side and a second side opposite from the first side. The first side includes horizontally oriented unit cells positioned as multiple columns of unit cells. The first side of the FSS faces the source antenna and is separated from the source antenna by a defined distance. The housing is positioned on the second side of the FSS. In the latter example, the fluidic channel of the housing includes one of air or deionized water. The fluidic channel is positioned on a portion of the second side of the FSS that is opposite to a subset of the horizontally oriented unit cells on the first side of the FSS.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 8, 2019
    Inventors: Rhonda R. Franklin, Robert Sainati, Chanjoon Lee, Aditya Dave