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CC2340R5: 天线匹配电路以及传导功率异常问题

Part Number: CC2340R5


测试传导功率:断开CA2/15pF,CR10 PIN2接馈线至频谱仪,其功率只有-40dBm(广播功率配置为8dBm),但是在天线匹配的Π型滤波后测试其传导功率,可以测到7dBm左右。

1,测试结果是否正常?

2,Π型滤波用来匹配天线,为什么会影响芯片的输出功率?