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    • 43. 发明申请
    • Polar modulator and method for determining an amplitude offset in a polar modulator
    • 极性调制器和用于确定极性调制器中的幅度偏移的方法
    • US20060089111A1
    • 2006-04-27
    • US11255439
    • 2005-10-21
    • Christian MayerJose Pedro MoreiraHelmut HerrmannGunter Marzinger
    • Christian MayerJose Pedro MoreiraHelmut HerrmannGunter Marzinger
    • H01Q11/12H04B1/04
    • H04L27/361H03F3/24
    • A polar modulator contains a first input for supplying an amplitude modulation word and a second input for supplying a phase modulation word. The first input is connected to a first signal path, and the second input is connected to a second signal path. The polar modulator contains a converter having a first input which is connected to a first signal path and having a second input which is connected to the second signal path. In this case, the converter is configured to output a radio-frequency signal derived from the phase modulation word and the amplitude modulation word. A feedback path has a level detector connected to the converter and has its output side connected to a correction device. The correction device is designed to output a correction word to the first signal path on the basis of a signal which is output by the level detector.
    • 极性调制器包含用于提供幅度调制字的第一输入端和用于提供相位调制字的第二输入端。 第一输入连接到第一信号路径,第二输入连接到第二信号路径。 极性调制器包含具有连接到第一信号路径并且具有连接到第二信号路径的第二输入的第一输入的转换器。 在这种情况下,转换器被配置为输出从相位调制字和幅度调制字导出的射频信号。 反馈路径具有连接到转换器的电平检测器,并且其输出端连接到校正装置。 校正装置被设计为基于由电平检测器输出的信号将校正字输出到第一信号路径。