Patents by Inventor Bum Kyum Kim

Bum Kyum Kim 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).

  • Low noise amplifier having both ultra-high linearity and low noise characteristic and radio receiver including the same
    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
  • LOW NOISE AMPLIFIER HAVING BOTH ULTRA-HIGH LINEARITY AND LOW NOISE CHARACTERISTIC AND RADIO RECEIVER INCLUDING THE SAME
    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