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VSWR measurement circuit, radio communication apparatus, VSWR measurement method, and recording medium having VSWR measurement program stored thereon
VSWR measurement circuit, radio communication apparatus, VSWR measurement method, and recording medium having VSWR measurement program stored thereon
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机译：VSWR测量电路，无线电通信设备，VSWR测量方法和其上存储有VSWR测量程序的记录介质
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摘要
In this VSWR measurement circuit, a power measurement unit measures the power level of a reflected signal which is included in a feedback signal which has been extracted at a second CPL which has been deployed at a position connecting to an antenna end via a cable. To this end, the VSWR measurement circuit is provided with a main signal component removal circuit, wherein the main signal which has been extracted from the prestage of a digital pre-distortion circuit, and a signal in which the feedback signal that had been extracted at the second CPL has been converted to a digital signal at an A/D CONV, are provided as inputs, the main signal component included in the feedback signal is removed, and only the reflected signal is extracted so as to be output to the power measurement unit.
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机译：在该VSWR测量电路中，功率测量单元测量包括在反馈信号中的反射信号的功率电平，该反馈信号已经在第二CPL处提取，该第二CPL已经部署在经由电缆连接到天线端的位置。为此，VSWR测量电路设置有主信号分量去除电路，其中，从数字预失真电路的前级提取的主信号，以及在其中提取的反馈信号的信号第二个CPL已在A / D CONV处转换为数字信号，作为输入提供，去除了反馈信号中包含的主信号分量，仅提取反射信号以输出到功率测量单元。
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