自动阻抗匹配网络是射频电路的重要组成部分,它能够帮助电路实现阻抗匹配,从而保证信号或能量在电路中的传输质量,广泛应用于雷达、电台等电子装备中。文中给出了自动阻抗匹配网络的结构框图、设计思路,并阐述了反射系数的检测方法和匹配算法。 Automatic impedance matching network is an important part of the RF circuit, which can help the circuit impedance matching, thus ensuring the signal or energy transmission quality in the circuit, widely used in radar, radio and other electronic equipment. The structure block diagram and design idea of ​​automatic impedance matching network are given in this paper. The detection method and matching algorithm of reflection coefficient are also described.