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    • 4. 发明申请
    • Apparatus and method for detecting radio frequency transmission power levels
    • 用于检测射频发射功率电平的装置和方法
    • US20050227641A1
    • 2005-10-13
    • US10820564
    • 2004-04-08
    • Norbert Schmitz
    • Norbert Schmitz
    • H04B1/44H04B1/52
    • H04B1/04H04B2001/0416
    • An apparatus and method for detecting radio frequency transmit power levels produced by a power amplifier of a wireless device is described. In one exemplary apparatus implementation, the apparatus includes a power amplifier, an antenna switch and a power amplifier detector. The power amplifier is configured to amplify a transmit signal at a desired power level. An antenna switch, is located between the power amplifier and an antenna, and is configured to switch the antenna from a receive mode to a transmit mode and vice versa. A power amplifier detector is connected to the antenna switch. The power amplifier detector is configured to receive a leakage signal from the antenna switch as a basis to detect the power level of the transmit signal.
    • 描述了一种用于检测由无线设备的功率放大器产生的射频发射功率电平的装置和方法。 在一个示例性设备实现中,该设备包括功率放大器,天线开关和功率放大器检测器。 功率放大器被配置为以期望功率电平放大发射信号。 天线开关位于功率放大器和天线之间,并被配置为将天线从接收模式切换到发射模式,反之亦然。 功率放大器检测器连接到天线开关。 功率放大器检测器被配置为从天线开关接收泄漏信号作为检测发射信号的功率电平的基础。