A RF Power Auto-Calibration System Based on LH79520

This paper introduces an auto-calibration system of the RF power.The system integrates the solid-power amplifiers with a high-precision power meter and is under the control of the μ C / OS-II real-time operating system.The interface display is in Chinese.The system has a large bandwidth span,a high output power and a good frequency response characteristics,can give a fast and accurate calibration on RF power between 1W ~ 100W.Without the use of the calibrated attenuator the RF power-calibration accuracy is also improved.