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    • 2. 发明授权
    • RF power sensing circuit
    • 射频功率检测电路
    • US07869773B2
    • 2011-01-11
    • US11573348
    • 2005-07-27
    • Onno Marcel Kuijken
    • Onno Marcel Kuijken
    • H04B1/04
    • H04W52/52H03F3/45744H03F3/45968H03F2200/462H03F2200/465H03F2200/471H03G3/3042
    • The present invention provides an electronic circuit for measuring of an output power of a RF power amplifier. The electronic circuit comprises a current sensing transistor for sensing the RF current of the power amplifier and a voltage sensing module for sensing the voltage of the RF power amplifier. The electronic circuit further comprises a coherent detector for multiplying the sensed current and the sensed voltage in the time domain. In this way a signal is generated that is directly indicative of the power provided by the power amplifier irrespective of its actual load. Preferably, the coherent detector is implemented as a Gilbert quad and provides a differential output that effectively allows for DC offset compensation.
    • 本发明提供一种用于测量RF功率放大器的输出功率的电子电路。 电子电路包括用于感测功率放大器的RF电流的电流感测晶体管和用于感测RF功率放大器的电压的电压感测模块。 该电子电路还包括一个相干检测器,用于将感测到的电流和感测到的电压在时域中相乘。 以这种方式产生直接指示由功率放大器提供的功率的信号,而不管其实际负载如何。 优选地,相干检测器被实现为吉尔伯特四边形并提供有效地允许DC偏移补偿的差分输出。
    • 3. 发明申请
    • Rf Power Sensing Circuit
    • Rf功率传感电路
    • US20080278141A1
    • 2008-11-13
    • US11573348
    • 2005-07-25
    • Onno Marcel Kuijken
    • Onno Marcel Kuijken
    • G01R21/06
    • H04W52/52H03F3/45744H03F3/45968H03F2200/462H03F2200/465H03F2200/471H03G3/3042
    • The present invention provides an electronic circuit for measuring of an output power of a RF power amplifier The electronic circuit comprises a current sensing transistor for sensing the RF current of the power amplifier and a voltage sensing module for sensing the voltage of the RF power amplifier. The electronic circuit further comprises a coherent detector for multiplying the sensed current and the sensed voltage in the time domain. In this way a signal is generated that is directly indicative of the power provided by the power amplifier irrespective of its actual load. Preferably, the coherent detector is implemented as a Gilbert quad and provides a differential output that effectively allows for DC offset compensation.
    • 本发明提供了一种用于测量RF功率放大器的输出功率的电子电路。该电子电路包括用于感测功率放大器的RF电流的电流感测晶体管和用于感测RF功率放大器的电压的电压感测模块。 该电子电路还包括一个相干检测器,用于将感测到的电流和感测到的电压在时域中相乘。 以这种方式产生直接指示由功率放大器提供的功率的信号,而不管其实际负载如何。 优选地,相干检测器被实现为吉尔伯特四边形并提供有效地允许DC偏移补偿的差分输出。