Patents by Inventor Jamil Forrester

Jamil Forrester 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).

  • Transmitter harmonics calibration to improve transmit linearity
    Patent number: 9900030
    Abstract: An apparatus comprises: radio frequency (RF) transceiver circuitry for electrical coupling to an antenna and including: a local oscillator (LO) circuit configured to generate a LO signal, and a mixer circuit configured to mix a CW tone signal with the LO signal; a measurement receiver path configured to measure an antenna signal, wherein the antenna signal includes the CW tone signal mixed with the LO signal; and baseband processing circuitry electrically coupled to the measurement receiver path and configured to adjust a clock duty ratio of the LO signal to reduce one or more counter intermodulation (CIM) signals in the antenna signal.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: February 20, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Hong Jiang, Zhihang Zhang, Jamil Forrester, Wael Al-Qaq
  • TRANSMITTER HARMONICS CALIBRATION TO IMPROVE TRANSMIT LINEARITY
    Publication number: 20170302308
    Abstract: An apparatus comprises: radio frequency (RF) transceiver circuitry for electrical coupling to an antenna and including: a local oscillator (LO) circuit configured to generate a LO signal, and a mixer circuit configured to mix a CW tone signal with the LO signal; a measurement receiver path configured to measure an antenna signal, wherein the antenna signal includes the CW tone signal mixed with the LO signal; and baseband processing circuitry electrically coupled to the measurement receiver path and configured to adjust a clock duty ratio of the LO signal to reduce one or more counter intermodulation (CIM) signals in the antenna signal.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Hong Jiang, Zhihang Zhang, Jamil Forrester, Wael Al-Qaq
  • Transconductance optimization using feedback-balun-transformer with inductance degeneration combinations
    Patent number: 9608568
    Abstract: Disclosed are apparatuses and methods to overcome technology limitations to achieve linearity and efficiency performance suitable for practical wireless communications systems. In an embodiment, an amplifier is provided that superimposes the transconductance from a common source amplifier with inductor degeneration with the transconductance from a common source amplifier without degeneration. In an embodiment, an amplifier is provided having a feedback-balun-transformer that provides electro-magnetic coupling between primary, secondary, and negative feedback degeneration inductors and a differential to single-ended conversion output.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: March 28, 2017
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yoonhyuk Ro, Xuya Qiu, Jamil Forrester
  • TRANSCONDUCTANCE OPTIMIZATION USING FEEDBACK-BALUN-TRANSFORMER WITH INDUCTANCE DEGENERATION COMBINATIONS
    Publication number: 20160261234
    Abstract: Disclosed are apparatuses and methods to overcome technology limitations to achieve linearity and efficiency performance suitable for practical wireless communications systems. In an embodiment, an amplifier is provided that superimposes the transconductance from a common source amplifier with inductor degeneration with the transconductance from a common source amplifier without degeneration. In an embodiment, an amplifier is provided having a feedback-balun-transformer that provides electro-magnetic coupling between primary, secondary, and negative feedback degeneration inductors and a differential to single-ended conversion output.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 8, 2016
    Inventors: Yoonhyuk Ro, Xuya Qiu, Jamil Forrester