Patents by Inventor Guoxiang Han

Guoxiang Han 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: 20250096734
    Abstract: A phase-reconfigurable circuit for a dual-input power amplifier is provided. The circuit includes an envelope detector configured to process an envelope of an RF input signal into an envelope signal. A first vector-sum phase-shifter and a second vector-sum phase-shifter processes an in-phase and a quadrature-phase version of the RF input signal with the envelope signal to produce a first differential output signal having a dynamically-modulated phase difference with a second differential output signal.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 20, 2025
    Inventors: Sunbo SHIM, Guoxiang HAN, David Angel CALVILLO CORTES, Paolo Enrico DE FALCO, Antonino SCUDERI
  • Publication number: 20240421837
    Abstract: A phase-reconfigurable circuit with programmable power splitting for a dual-input power amplifier is provided. The circuit includes an I/Q generator to generate I and Q RF signals from an input RF signal. A first vector-sum phase-shifter processes the I and Q RF signals to produce a first RF output signal. Similarly, a second vector-sum phase-shifter processes the I and Q RF signals to produce a second RF output signal.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 19, 2024
    Inventors: Guoxiang HAN, Paolo Enrico DE FALCO, Antonino SCUDERI
  • Patent number: 11791854
    Abstract: Circuits for receivers including: N first mixers that each receive an input signal, are each clocked by a different phase of a first common clock frequency, and each provide an output; and for each N first mixer: a set of M second mixers, wherein each second mixer receives as an input the output of a same one of the N first mixers unique to the set, wherein each of M second mixer is clocked by a different phase of a second common clock frequency, and wherein each second mixer has an output; a set of M resistors having a first side and a second side, wherein the first side is connected to the output of a corresponding one of the set of M second mixers; and a set of M trans-impedance amplifiers that each having an input connected to the second side of a corresponding one of the resistors.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: October 17, 2023
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Guoxiang Han, Peter R. Kinget, Tanbir Haque
  • Patent number: 11705932
    Abstract: Circuits for a receiver, comprising: M first mixers that each receive an input signal, that are each clocked by a different phase of a first common clock frequency, and that each provide an output, wherein M is a count of the first mixers; and M sets of N second mixers, wherein N is a count of the second mixers in each of the M sets, wherein each second mixer in each set of N second mixers receives as an input the output of a corresponding one of the M first mixers, wherein each of the N second mixers in each of the M sets are clocked by a different phase of a second common clock frequency, and wherein each of the second mixers has an output.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: July 18, 2023
    Assignee: The Trustees of Columbia University In the City of New York
    Inventors: Guoxiang Han, Peter R. Kinget, Tanbir Haque
  • Publication number: 20220123772
    Abstract: Circuits for receivers including: N first mixers that each receive an input signal, are each clocked by a different phase of a first common clock frequency, and each provide an output; and for each N first mixer: a set of M second mixers, wherein each second mixer receives as an input the output of a same one of the N first mixers unique to the set, wherein each of M second mixer is clocked by a different phase of a second common clock frequency, and wherein each second mixer has an output; a set of M resistors having a first side and a second side, wherein the first side is connected to the output of a corresponding one of the set of M second mixers; and a set of M trans-impedance amplifiers that each having an input connected to the second side of a corresponding one of the resistors.
    Type: Application
    Filed: December 23, 2021
    Publication date: April 21, 2022
    Inventors: Guoxiang Han, Peter R. Kinget, Tanbir Haque
  • Publication number: 20210258030
    Abstract: Circuits for a receiver, comprising: M first mixers that each receive an input signal, that are each clocked by a different phase of a first common clock frequency, and that each provide an output, wherein M is a count of the first mixers; and M sets of N second mixers, wherein N is a count of the second mixers in each of the M sets, wherein each second mixer in each set of N second mixers receives as an input the output of a corresponding one of the M first mixers, wherein each of the N second mixers in each of the M sets are clocked by a different phase of a second common clock frequency, and wherein each of the second mixers has an output.
    Type: Application
    Filed: February 16, 2021
    Publication date: August 19, 2021
    Inventors: Guoxiang Han, Peter R. Kinget, Tanbir Haque
  • Patent number: 10819284
    Abstract: Circuits comprising: a plurality of LNTA branches, each comprising: a cascode common-source (CCS) LNTA, a plurality of passive mixers (PMs), and a plurality of baseband two-stage Miller compensated TIAs (BB2S-TIAs); a plurality of mixer-first branches, each comprising: a plurality of RF switches, a plurality of baseband folded-cascode TIAs (BBFC-TIAs), and a plurality of Cherry-Hooper amplifiers, wherein an input to each of the BBFC-TIAs is provided by an output of at least one of the RF switches, and an input to each of the amplifiers is provided by an output of a corresponding one of the BBFC-TIAs; a first plurality of clock modulators that provide first non-overlapping modulated clocks that are provided to an input of the PMs; and a second plurality of clock modulators that provide a plurality of tri-level modulated mixer clocks that control the switching of the RF switches.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: October 27, 2020
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Guoxiang Han, Tanbir Haque, Peter R. Kinget
  • Publication number: 20200099338
    Abstract: Circuits comprising: a plurality of LNTA branches, each comprising: a cascode common-source (CCS) LNTA, a plurality of passive mixers (PMs), and a plurality of baseband two-stage Miller compensated TIAs (BB2S-TIAs); a plurality of mixer-first branches, each comprising: a plurality of RF switches, a plurality of baseband folded-cascode TIAs (BBFC-TIAs), and a plurality of Cherry-Hooper amplifiers, wherein an input to each of the BBFC-TIAs is provided by an output of at least one of the RF switches, and an input to each of the amplifiers is provided by an output of a corresponding one of the BBFC-TIAs; a first plurality of clock modulators that provide first non-overlapping modulated clocks that are provided to an input of the PMs; and a second plurality of clock modulators that provide a plurality of tri-level modulated mixer clocks that control the switching of the RF switches.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 26, 2020
    Inventors: Guoxiang Han, Tanbir Haque, Peter R. Kinget