Phase shifted transmitter architecture for communication systems
    2.
    发明授权
    Phase shifted transmitter architecture for communication systems 失效
    用于通信系统的相移发射机架构

    公开(公告)号:US07260157B2

    公开(公告)日:2007-08-21

    申请号:US10300637

    申请日:2002-11-21

    IPC分类号: H04K1/02 H04L25/03 H04L25/49

    CPC分类号: H03F1/0294 H04L27/362

    摘要: The phase shifted (PS) transmitter provides substantially linear amplification from two non-linear amplifiers by decomposing the original signal into two constant envelope signals with varying phases. The generation of the two constant envelope signals does not require the use of a signal component separator (SCS) or a reference signal generator. The phase shifted transmitter generates directly the required constant envelope, varying phase signals. This eliminates stringent requirements on the circuitry and allows the use of non-linear highly efficient power amplifiers in the transmitter. When the two above mentioned signals are combined, they constructively and destructively interfere to re-form an amplified form of the original signal, which is to be transmitted via an antenna.

    摘要翻译: 相移(PS)发射器通过将原始信号分解成具有变化相位的两个恒定包络信号,从两个非线性放大器提供基本上线性的放大。 两个恒定包络信号的产生不需要使用信号分量分离器(SCS)或参考信号发生器。 相移发射机直接产生所需的恒定包络线,改变相位信号。 这消除了对电路的严格要求,并允许在发射机中使用非线性高效功率放大器。 当两个上述信号被组合时,它们被建设性地和破坏性地干扰以重新形成将通过天线传输的原始信号的放大形式。