摘要
介绍了一种发射机功率信号检测电路,采用双耦合器信号取样结构,以降低耦合器方向性不理想造成的误差,提高功率信号检测的准确度。在理论上进行了分析,为电路设计提供了依据;利用该方法进行了电路实验,测试数据表明该方法可以提高功率信号检测的准确度,从而能够更准确地对发射机状态进行控制。
This paper introduces a RF power detection circuit for transmitter power control, adopting double coupler structure for sampling signal to improve the accuracy of power signal detection, and theoretically ana- lyzes the circuit to provide the basis for circuit design. The performances of the circuit are demonstrated experi- mentally. Test data show that this method improves the accuracy of power signal detection correctly. It can be more accurate to control the state of transmitters according to power signal and standing wave coefficient ob- tained by the method.
出处
《通信对抗》
2014年第2期20-23,共4页
Communication Countermeasures
关键词
发射机
功率信号检测
信号取样
transmitter
power signal detection
signal sampling
