专利名称：Surface acoustic wave filter having an
improved edge steepness via series
resonators with different finger periodicities
发明人：Peter Selmeier,Maximilian Pitschi申请号：US09484798申请日：20000118公开号：US06351197B1公开日：20020226
专利附图：
摘要：A surface acoustic wave (SAW) filter having an improved edge steepnessincludes at least three resonators connected in series and/or parallel with one another.
An edge steepness of a pass band is improved if a plurality of resonators with differentfinger periodicities of interdigital transducers are provided.
申请人：EPCOS AG
代理人：Herbert L. Lerner,Laurence A. Greenberg,Werner H. Stemer
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