简介在设计滤波器以满足给定要求的过程中,存在着许多固有的挑战。这些要求主要在电气、机械和环境方面。机械尺寸之类的约束通常具有极高的重要性,并且受系统层面设计的推动。在这里我们将讨论滤波器设计过程中在射频方面的一些重大挑战。在第二部分中,针对我们现有的产品之一演示了不同温度下频率响应的漂移。这种频率响应的漂移非常重要,需要加以注意,在设计流程开始 Introduction There are many inherent challenges in designing filters to meet given requirements. These requirements are mainly electrical, mechanical and environmental aspects. Constraints such as mechanical dimensions are often of high importance and are driven by system level design. Here we discuss some of the major RF challenges in the filter design process. In the second part, the frequency response drift at different temperatures is demonstrated for one of our existing products. This drift in frequency response is very important and needs to be taken care of before the design flow begins