Multi-standard wireless transmitter
    1.
    发明授权
    Multi-standard wireless transmitter 有权
    多标准无线发射机

    公开(公告)号:US09178538B2

    公开(公告)日:2015-11-03

    申请号:US13300291

    申请日:2011-11-18

    摘要: The invention concerns a circuit for multi-standard wireless RF transmission comprising: input circuitry (302 to 314) for generating a transmission signal (IT(t), QT(t)) based on an input data signal (I, Q); a power amplifier (316) adapted to amplify said transmission signal to provide an output signal (S(t)) for transmission via at least one antenna; and feedback circuitry (320 to 340) comprising at least one variable low-pass filter (334, 336) for generating a feedback signal (IFB, QFB) based on said output signal, wherein said input circuitry further comprises pre-distortion circuitry (302) adapted to modify said input data signal (I, Q) based on said feedback signal.

    摘要翻译: 本发明涉及一种用于多标准无线RF传输的电路,包括:用于基于输入数据信号(I,Q)产生传输信号(IT(t),QT(t))的输入电路(302至314); 功率放大器(316),适于放大所述传输信号以提供用于经由至少一个天线传输的输出信号(S(t)); 以及包括至少一个可变低通滤波器(334,336)的反馈电路(320至340),用于基于所述输出信号产生反馈信号(IFB,QFB),其中所述输入电路还包括预失真电路 )适于基于所述反馈信号修改所述输入数据信号(I,Q)。

    MULTI-STANDARD WIRELESS TRANSMITTER
    4.
    发明申请
    MULTI-STANDARD WIRELESS TRANSMITTER 有权
    多标准无线发射机

    公开(公告)号:US20120314736A1

    公开(公告)日:2012-12-13

    申请号:US13300291

    申请日:2011-11-18

    IPC分类号: H04L25/49

    摘要: The invention concerns a circuit for multi-standard wireless RF transmission comprising: input circuitry (302 to 314) for generating a transmission signal (IT(t), QT(t)) based on an input data signal (I, Q); a power amplifier (316) adapted to amplify said transmission signal to provide an output signal (S(t)) for transmission via at least one antenna; and feedback circuitry (320 to 340) comprising at least one variable low-pass filter (334, 336) for generating a feedback signal (IFB, QFB) based on said output signal, wherein said input circuitry further comprises pre-distortion circuitry (302) adapted to modify said input data signal (I, Q) based on said feedback signal.

    摘要翻译: 本发明涉及一种用于多标准无线RF传输的电路,包括:用于基于输入数据信号(I,Q)产生传输信号(IT(t),QT(t))的输入电路(302至314); 功率放大器(316),适于放大所述传输信号以提供用于经由至少一个天线传输的输出信号(S(t)); 以及包括至少一个可变低通滤波器(334,336)的反馈电路(320至340),用于基于所述输出信号产生反馈信号(IFB,QFB),其中所述输入电路还包括预失真电路 )适于基于所述反馈信号修改所述输入数据信号(I,Q)。