开关滤波器组件是RF宽带功放中的关键部件之一。在功放体积不断减小、输出功率不断增大的趋势下,开关滤波器组的设计变得越来越重要,也越来越困难。文中介绍了开关滤波器组件的基本构成,分析了实现开关滤波功能过程中将要面临的实际问题,并给出了解决方案。 Switching filter components are one of the key components in RF wideband power amplifiers. With the continuous reduction of amplifier volume and increasing output power, the design of switching filter banks becomes more and more important and more and more difficult. This paper introduces the basic components of the switching filter components, analyzes the practical problems that will be faced in the realization of the switching filter function, and gives the solution.