Patents by Inventor Ivan Mitkov Zahariev

Ivan Mitkov Zahariev 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).

  • Matching circuit
    Patent number: 10742195
    Abstract: A matching circuit comprising: an input-terminal configured to be connected to an active-circuit; an output-terminal configured to be connected to a downstream component; a current-source configured to provide a disabled-current; one or more diode-modules, each comprising a diode and a biasing-resistor in parallel with each other; and a reactive-matching-component that has a reactive impedance. The current source is configured to pass the disabled-current through the one or more diode-modules and the reactive-matching-component when the matching circuit is in a disabled-mode of operation such that they contribute to the impedance of the matching circuit between the input-terminal and the output-terminal.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: August 11, 2020
    Assignee: NXP B.V.
    Inventors: Amin Hamidian, Gian Hoogzaad, Ivan Mitkov Zahariev
  • MATCHING CIRCUIT
    Publication number: 20190181840
    Abstract: A matching circuit comprising: an input-terminal configured to be connected to an active-circuit; an output-terminal configured to be connected to a downstream component; a current-source configured to provide a disabled-current; one or more diode-modules, each comprising a diode and a biasing-resistor in parallel with each other; and a reactive-matching-component that has a reactive impedance. The current source is configured to pass the disabled-current through the one or more diode-modules and the reactive-matching-component when the matching circuit is in a disabled-mode of operation such that they contribute to the impedance of the matching circuit between the input-terminal and the output-terminal.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 13, 2019
    Inventors: Amin Hamidian, Gian Hoogzaad, Ivan Mitkov Zahariev
  • Doherty amplifiers
    Patent number: 10090810
    Abstract: A Doherty amplifier comprising: a main-power-amplifier having a main-amp-output-terminal; a peaking-power-amplifier having a peaking-amp-output-terminal; a combining node; a main-output-impedance-inverter connected between the main-amp-output-terminal and the combining node; and a transformer connected between the peaking-amp-output-terminal and the combining node.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: October 2, 2018
    Assignee: NXP B.V.
    Inventors: Mark Pieter van der Heijden, Jozef Reinerus Maria Bergervoet, Ivan Mitkov Zahariev
  • DOHERTY AMPLIFIERS
    Publication number: 20180006612
    Abstract: A Doherty amplifier comprising: a main-power-amplifier having a main-amp-output-terminal; a peaking-power-amplifier having a peaking-amp-output-terminal; a combining node; a main-output-impedance-inverter connected between the main-amp-output-terminal and the combining node; and a transformer connected between the peaking-amp-output-terminal and the combining node.
    Type: Application
    Filed: May 22, 2017
    Publication date: January 4, 2018
    Inventors: Mark Pieter van der Heijden, Jozef Reinerus Maria Bergervoet, Ivan Mitkov Zahariev