基于AD8307的射频功率测量电路设计

摘要

A radio frequency(RF) power sensor circuit based on AD8307 is designed to measure the power delivered from a transmitter. By using a resistor and a capacitor, the power through the transmission line can be coupled into the AD8307. The power ranging from 1 W to 100 W can be measured accurately when the frequency is from 0.1 MHz to 100 MHz.%提出的一种基于AD8307的射频功率测量电路设计方案，使用一电阻和一电容将传输线上的射频信号功率耦合进AD8307芯片，AD8307芯片将其转换成直流电压信号输出。该电路测量功率范围可从1 W到100 W，工作频率从高0.1 MHz到100 MHz。测试结果验证的该方案的可行性。