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本文回顾了基于抽指加权设计的声表面波带通滤波器能够发展起来的原因,介绍了用来合成这类滤波器的计算机辅助设计程序.采用的是一种既适用于基波又适用于谐波的谱线加权换能器模型,介绍了用计算机设计的抽指加权滤波器的几个实例.
This paper reviews the reason why SAW band-pass filters based on the weighted design of pumping fingers can be developed, and introduces the computer-aided design procedure used to synthesize such filters. Harmonic spectral line-weighted transducer model, introduced a few examples of computer-designed fingering weighted filter.