Patents by Inventor Shunzhong ZHANG

Shunzhong ZHANG 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).

  • Power amplification apparatus, remote radio unit, and base station
    Patent number: 11128259
    Abstract: A power amplification apparatus, a remote radio unit, and a base station are provided to improve power amplification efficiency. The power amplification apparatus includes an envelope modulator, a main power amplifier, and a first auxiliary power amplifier. The envelope modulator is configured to obtain an envelope voltage based on a received envelope signal and output the envelope voltage to the drain of the main power amplifier. The main power amplifier is connected to the envelope modulator and configured to use the envelope voltage as an operating voltage, and is connected to the first auxiliary power amplifier, to output the envelope voltage to a drain of the first auxiliary power amplifier. The first auxiliary power amplifier is configured to use the envelope voltage received from the main power amplifier as an operating voltage.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: September 21, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shunzhong Zhang, Lipeng Zhang, Zhonghua Cai
  • POWER AMPLIFICATION APPARATUS, REMOTE RADIO UNIT, AND BASE STATION
    Publication number: 20190348952
    Abstract: A power amplification apparatus, a remote radio unit, and a base station are provided to improve power amplification efficiency. The power amplification apparatus includes an envelope modulator, a main power amplifier, and a first auxiliary power amplifier. The envelope modulator is configured to obtain an envelope voltage based on a received envelope signal and output the envelope voltage to the drain of the main power amplifier. The main power amplifier is connected to the envelope modulator and configured to use the envelope voltage as an operating voltage, and is connected to the first auxiliary power amplifier, to output the envelope voltage to a drain of the first auxiliary power amplifier. The first auxiliary power amplifier is configured to use the envelope voltage received from the main power amplifier as an operating voltage.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Inventors: Shunzhong ZHANG, Lipeng ZHANG, Zhonghua CAI