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    • 2. 发明申请
    • DOHERTY AMPLIFIER
    • DOHERTY放大器
    • WO2016124707A2
    • 2016-08-11
    • PCT/EP2016/052423
    • 2016-02-04
    • AMPLEON NETHERLANDS B.V.
    • MORONVAL, Xavier, Bruno, Jean
    • H03F1/02
    • H03F1/0288H03F1/56H03F1/565H03F3/195H03F3/213H03F3/245H03F3/604H03F2200/387H03F2200/423H03F2200/451
    • A Doherty amplifier (100, 200) having a set of amplifiers (120, 122) comprising a main amplifier (120) and at least one peak amplifier (122), each amplifier of the set of amplifiers (120, 122) having an input and an output, the at least one peak amplifier (122) configured to become operational at a respective threshold power, the Doherty amplifier (100, 200) further comprising: a Doherty amplifier output node (126) coupled to the outputs of the set of amplifiers (120, 122) through an impedance network (108), the impedance network (108) comprising: impedance inverting elements (128) configured to match the impedance of the outputs of the set of amplifiers (120, 122) at the Doherty amplifier output node (126); and a matching system (132) coupled to the outputs of the set of amplifiers (120, 122), the matching system (132) configured to impedance match the modulated impedance output of the main amplifier (120) to the impedance of the peak amplifiers (122).
    • 具有包括主放大器(120)和至少一个峰值放大器(122)的一组放大器(120,122)的Doherty放大器(100,200),所述放大器组(120,122)中的每个放大器具有输入 以及输出,所述至少一个峰值放大器(122)被配置为以相应的阈值功率运行,所述多赫蒂放大器(100,200)还包括:多赫蒂放大器输出节点(126),耦合到所述一组 所述阻抗网络(108)包括:阻抗反转元件(128),被配置为匹配所述放大器组(120,122)的所述输出端的阻抗,所述放大器(120,122)的集合在所述Doherty放大器 输出节点(126); 以及耦合到所述放大器组(120,122)的输出的匹配系统(132),所述匹配系统(132)被配置为将所述主放大器(120)的调制阻抗输出阻抗匹配到所述峰值放大器 (122)。