本文介绍了用奇偶函数设计的声表面波电视中频滤波器.该器件由一个输入变迹换能器和一个输出等指长均匀换能器组成.报导了在同一个换能器上实现非对称频响的一种新方法.这种设计简单而又灵活,加权换能器具有周期相等的叉指结构易于制作,并且每条电极的幅度分别加权恰好保留了双电极结构的优点.最后给出了器件的理论和实验结果. This article describes a surface-wave TV IF filter designed with odd and even functions, which consists of an input apodization transducer and an output equal-length, uniform transducer, etc. It is reported that on the same transducer an asymmetric Frequency response of a new method.The design is simple and flexible, the weighted transducer has the same period of the interdigital structure is easy to make, and the amplitude of each electrode separately weighted just retained the advantages of the two-electrode structure.Finally given The device theory and experimental results.