Patents by Inventor Junhan LIM

Junhan LIM 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).

  • Vector sum circuit and phase controller using the same
    Patent number: 10659021
    Abstract: A vector sum circuit and a phase controller including the vector sum circuit are provided. The vector sum circuit includes an amplifier configured to amplify an input orthogonal signal by using a first metal oxide semiconductor field effect transistor (MOSFET), and a self body-biasing circuit comprising a resistor. The self body-biasing circuit is configured to connect a drain and a body of the first MOSFET to reduce a voltage connected to the body as a current at the drain increases.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: May 19, 2020
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Sungku Yeo, Gwanghyeon Jeong, Songcheol Hong, Jaeseok Park, Seunghun Wang, Youngho Ryu, Junhan Lim
  • VECTOR SUM CIRCUIT AND PHASE CONTROLLER USING THE SAME
    Publication number: 20190222205
    Abstract: A vector sum circuit and a phase controller including the vector sum circuit are provided. The vector sum circuit includes an amplifier configured to amplify an input orthogonal signal by using a first metal oxide semiconductor field effect transistor (MOSFET), and a self body-biasing circuit comprising a resistor. The self body-biasing circuit is configured to connect a drain and a body of the first MOSFET to reduce a voltage connected to the body as a current at the drain increases.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 18, 2019
    Inventors: Sungku YEO, Gwanghyeon JEONG, Songcheol HONG, Jaeseok PARK, Seunghun WANG, Youngho RYU, Junhan LIM