Design Method of UHF Band Power Detecting System

This paper introduces a design method based on UHF frequency band power detection and control system, and uses coaxial line of directional coupler. Positive/negative signal power detection is through directional coupler to main channel of RF signal coupled to the detection channel into AD8362 module. And converted to voltage signal, and through Microcontroller's internal digital-analog conversion, processing data is convert to power for detection staff to provide timely detection results, if Standing wave ratio is too large, to provide Standing wave ratio alarm, and achieve intelligent detection.