RF Power Detector ICs Information

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Radio Frequency (RF) Power Detector ICs are chips that detect the presence and strength of an RF signals and provide a corresponding output.





Accurate RF power detection is important in both RF receivers and transmitters. To comply with government regulation and minimize RF interference with other radio devices, many RF devices must carefully monitor and control their RF power transmission. In the United States, The Federal Communications Commission (FCC) is responsible for governing the interference potential of equipment which emits radio frequency energy.


RF Power Detector ICs are often used in the following applications:


  • Cell phones and cordless telephones
  • 802.11 wireless LAN
  • Radio Frequency Identification (RFID) tagsRF POWER DETECTOR ICS
  • Inventory monitors
  • Satellite transceivers
  • Fixed wireless access and wireless communications infrastructure 


RF Power Detector ICs can also be used within equipment designed for the purpose of detecting unwanted surveillance equipment.





The choice of RF power detector is determined by the RF frequency, as well as by other constraints such as the required dynamic range and sensitivity.




Linear Technology - Wideband RF ICs for Power Detection and Control (PDF)


FCC - Equipment Authorization


Image Credit:


Digi-Key Corporation