公开(公告)号：WO2007044148A3

公开(公告)日：2007-04-19

申请号：PCT/US2006/033664

申请日：2006-08-28

Applicant: MOTOROLA, INC. ,  KRVAVAC, Enver, ,  SCHULTZ, Joseph G., ,  YU, Yinglei,

Inventor： KRVAVAC, Enver, ,  SCHULTZ, Joseph G., ,  YU, Yinglei,

IPC: H03F3/68 ,  H03F3/20 ,  H01Q11/12

Abstract: An apparatus and method for adaptive biasing of a Doherty amplifier (102) is disclosed. The apparatus includes a carrier amplifier (210), a peaking amplifier (214), a carrier amplifier bias circuit (208) and a peaking amplifier bias circuit (212), all integrated onto a single chip. The method includes dividing an input signal into an in-phase signal and a quadrature phase signal. The method further includes sampling the input signal and applying the sampled signal to the biasing circuits. The method further includes adaptively biasing the carrier amplifier and the peaking amplifier by the output of the biasing circuits.

公开(公告)号：WO2007044148A2

公开(公告)日：2007-04-19

申请号：PCT/US2006033664

申请日：2006-08-28

Applicant: MOTOROLA INC ,  KRVAVAC ENVER ,  SCHULTZ JOSEPH G ,  YU YINGLEI

Inventor： KRVAVAC ENVER ,  SCHULTZ JOSEPH G ,  YU YINGLEI

IPC: H03F3/68

CPC classification number: H03F1/30 ,  H03F1/0288 ,  H03F2200/18

Abstract: An apparatus and method for adaptive biasing of a Doherty amplifier (102) is disclosed. The apparatus includes a carrier amplifier (210), a peaking amplifier (214), a carrier amplifier bias circuit (208) and a peaking amplifier bias circuit (212), all integrated onto a single chip. The method includes dividing an input signal into an in-phase signal and a quadrature phase signal. The method further includes sampling the input signal and applying the sampled signal to the biasing circuits. The method further includes adaptively biasing the carrier amplifier and the peaking amplifier by the output of the biasing circuits.

Abstract translation: 公开了一种用于Doherty放大器（102）的自适应偏置的装置和方法。 该装置包括载波放大器（210），峰化放大器（214），载波放大器偏置电路（208）和峰值放大器偏置电路（212），它们都集成到单个芯片上。 该方法包括将输入信号分成同相信号和正交相位信号。 该方法还包括对输入信号进行采样并将采样信号施加到偏置电路。 该方法还包括通过偏置电路的输出自适应地偏置载波放大器和峰值放大器。