Patent ID: 8791773
Filing Date: 2014-07-29
Classification: H03H

Abstract:
1. A surface acoustic wave filter, comprising: a plurality of series-connected type IDT electrodes each comprising the plurality of series-connected type IDT electrodes comprises a first series-connected type IDT electrode and a second series-connected type IDT electrode which is adjacent to the first series-connected type IDT electrode, the first IDT electrode of the first series-connected type IDT electrode and the second IDT electrode of the second series-connected type IDT electrode being located next to each other, at least one of the plurality of first electrode fingers of the first series-connected type IDT electrode is located facing the second series-connected type IDT electrode, at least one of the plurality of third electrode fingers of the first series-connected type IDT electrode is located facing the second series-connected type IDT electrode, at least one of the plurality of first electrode fingers of the second series-connected type IDT electrode is located facing the first series-connected type IDT electrode, and at least one of the plurality of third electrode fingers of the second series-connected type IDT electrode is located facing the first series-connected type IDT electrode.