Patents by Inventor Dong Gu Im

Dong Gu Im 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: 20230025657
    Abstract: The present disclosure relates to a phased array antenna module.
    Type: Application
    Filed: July 26, 2022
    Publication date: January 26, 2023
    Applicant: Industrial Cooperation Foundation Jeonbuk Ntl Univ
    Inventors: Jung Mu KIM, Hae Won SON, Dong Gu IM
  • Patent number: 8577325
    Abstract: Disclosed herein is a low noise amplifier having both ultra-high linearity and a low noise characteristic and a radio receiver including the low noise amplifier. The low noise amplifier includes a first main transistor unit, a first auxiliary transistor unit, and an optimum noise and input impedance matching capacitor. The first main transistor unit includes a first NMOS transistor and a first PMOS transistor configured to form a complementary common source amplifier, a feedback-type resistor connected between drains of the first NMOS transistor and the first PMOS transistor and configured to generate biases to the two transistors, and bias resistors connected to bodies of the first PMOS transistor and the first NMOS transistor. The first auxiliary transistor unit includes transistors connected to the two transistors. The optimum noise and input impedance matching capacitor is connected to output terminals of the first main transistor unit and the first auxiliary transistor unit.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 5, 2013
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Kwy Ro Lee, Bum Kyum Kim, Dong Gu Im, Jae Young Choi
  • Publication number: 20120064852
    Abstract: Disclosed herein is a low noise amplifier having both ultra-high linearity and a low noise characteristic and a radio receiver including the low noise amplifier. The low noise amplifier includes a first main transistor unit, a first auxiliary transistor unit, and an optimum noise and input impedance matching capacitor. The first main transistor unit includes a first NMOS transistor and a first PMOS transistor configured to form a complementary common source amplifier, a feedback-type resistor connected between drains of the first NMOS transistor and the first PMOS transistor and configured to generate biases to the two transistors, and bias resistors connected to bodies of the first PMOS transistor and the first NMOS transistor. The first auxiliary transistor unit includes transistors connected to the two transistors. The optimum noise and input impedance matching capacitor is connected to output terminals of the first main transistor unit and the first auxiliary transistor unit.
    Type: Application
    Filed: March 17, 2011
    Publication date: March 15, 2012
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kwy Ro Lee, Bum Kyum Kim, Dong Gu Im, Jae Young Choi
  • Patent number: 8103233
    Abstract: The present disclosure relates to a tuner capable of receiving a television broadcasting signal of a wide band having an operating frequency bandwidth of 48 MHz˜1 GHz, wherein the tuner filters a radio frequency (RF) signal outputted from the low noise amplifier using a tunable filter. The tunable filter includes according to an embodiment an inductor and a variable capacitor as passive elements to reject harmonics. The tuner includes a mixer which mixes an output signal of the tunable filter with a local oscillator signal and converts the mixed signal to an In-phase and Quadrature IF signal, where the converted IF signal of I channel and Q channel is processed through an IF signal processor and is converted to an appropriate signal by a demodulator.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: January 24, 2012
    Assignee: LG Electronics Inc.
    Inventors: Dong Gu Im, Jae Yup Lee, Hee Sub Lee, Hong Teuk Kim, Kwy Ro Lee
  • Publication number: 20090176467
    Abstract: The present disclosure relates to a tuner capable of receiving a television broadcasting signal of a wide band having an operating frequency bandwidth of 48 MHz˜1 GHz, wherein the tuner filters a radio frequency (RF) signal outputted from the low noise amplifier using a tunable filter. The tunable filter includes according to an embodiment an inductor and a variable capacitor as passive elements to reject harmonics. The tuner includes a mixer which mixes an output signal of the tunable filter with a local oscillator signal and converts the mixed signal to an In-phase and Quadrature IF signal, where the converted IF signal of I channel and Q channel is processed through an IF signal processor and is converted to an appropriate signal by a demodulator.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 9, 2009
    Inventors: Dong Gu IM, Jae Yup Lee, Hee Sub Lee, Hong Teuk Kim, Kwy Ro Lee