Low RF power Measuring Technique

Hi,

Greetings. Could any information by ARM-M(3--6) LM micro-controller, I can manage to measure Low RF  power from  frequency L1(1-2 GHz Range)  or Incoming signals power mili-watt to pico watt Level.

I can see  that by Oscilloscope but I want to exactly measure by ARM-Coretex M Micro-controller.

Or designing how to measure low RF power.

Best Regards,

RF-Taha