Patents by Inventor Young R. Cha

Young R. Cha 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).

  • Patent number: 9048528
    Abstract: Antenna structures of electronic devices and methods of operating the electronic devices with the antenna structures are described. One antenna structure includes a ground plane, a radio frequency (RF) feed, a first antenna element coupled to the RF feed, a second antenna element coupled to the RF feed and a third antenna element coupled to the ground plane at a grounding point. The third antenna element is at least partially disposed between the first and second antenna elements to form a first coupling between the first antenna element and the third antenna element, a second coupling between the second antenna element and the third antenna element and a third coupling between the second antenna element and the third antenna element.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: June 2, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Tzung-I Lee, Young R. Cha
  • Patent number: 8847828
    Abstract: Antenna structures of electronic devices and methods of operating the electronic devices with the antenna structures are described. One apparatus includes a RF feed coupled to a first element and a second element of an antenna structure. The antenna structure also includes a parasitic grounding element coupled to a ground plane and is interleaved with the first element and second element to form at least a dual coupling with respect to the RF feed. The first element and second element are configured to operate as a feeding structure to a parasitic grounding element that is not conductively connected to the RF feed.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: September 30, 2014
    Assignee: Amazon Technologies, Inc.
    Inventors: Tzung-I Lee, Young R. Cha