Power Amplification Device
    1.
    发明申请

    公开(公告)号:US20170373646A1

    公开(公告)日:2017-12-28

    申请号:US15698079

    申请日:2017-09-07

    IPC分类号: H03F1/07 H03F3/20

    摘要: A power amplification device, including a first amplification branch, a second amplification branch, a harmonic injection circuit, and a first output matching circuit. A first amplifier in the first amplification branch supports a first frequency. A second amplifier in the second amplification branch supports the first frequency and a second frequency, and the second amplifier is turned off for a signal of the first frequency that has a power value lower than an enabling threshold. The harmonic injection circuit injects a signal of the second frequency that is input from a second input terminal (I2) to a signal of the first frequency that is input from a first input terminal (I1) to obtain a signal of the first frequency that has undergone harmonic injection.

    Power amplification device
    3.
    发明授权

    公开(公告)号:US10224878B2

    公开(公告)日:2019-03-05

    申请号:US15698079

    申请日:2017-09-07

    摘要: A power amplification device, including a first amplification branch, a second amplification branch, a harmonic injection circuit, and a first output matching circuit. A first amplifier in the first amplification branch supports a first frequency. A second amplifier in the second amplification branch supports the first frequency and a second frequency, and the second amplifier is turned off for a signal of the first frequency that has a power value lower than an enabling threshold. The harmonic injection circuit injects a signal of the second frequency that is input from a second input terminal (I2) to a signal of the first frequency that is input from a first input terminal (I1) to obtain a signal of the first frequency that has undergone harmonic injection.

    Doherty power amplifier, and method and device for improving power amplification efficiency of Doherty power amplifier
    7.
    发明授权
    Doherty power amplifier, and method and device for improving power amplification efficiency of Doherty power amplifier 有权
    Doherty功率放大器,以及提高Doherty功率放大器功率放大效率的方法和装置

    公开(公告)号:US08994450B2

    公开(公告)日:2015-03-31

    申请号:US14289295

    申请日:2014-05-28

    摘要: One aspect of the present invention provides a method for improving power amplification efficiency of a Doherty power amplifier. The method is applied to a Doherty power amplifier that has two paths of Doherty circuit units connected in parallel. The method includes: when output power of the Doherty power amplifier is within a low out power range, adjusting, by a bias circuit, gate voltages of main power amplifiers and peak power amplifiers in the two paths of Doherty circuit units connected in parallel, in order to cause the peak power amplifiers to be in an off state, and the main power amplifiers in the two paths of Doherty circuit units connected in parallel to be in a main power amplification state and a peak power amplification state respectively.

    摘要翻译: 本发明的一个方面提供了一种用于提高多赫蒂功率放大器的功率放大效率的方法。 该方法应用于Doherty功率放大器,其具有并联连接的Doherty电路单元的两条路径。 该方法包括:当Doherty功率放大器的输出功率处于低功率范围内时,通过偏置电路调节并联连接的Doherty电路单元的两个路径中的主功率放大器和峰值功率放大器的栅极电压, 以使峰值功率放大器处于断开状态,并且Doherty电路单元的两个路径中的主功率放大器分别并联连接成主功率放大状态和峰值功率放大状态。