Filter operating with acoustic waves having for reducing the non-linearity, multiple transducers metallization ratio is different, and a method of manufacturing the same

摘要

Nonlinearity is reduced, the manufacturing method is disclosed as well as a filter operating with acoustic waves. The filter includes a first electro-acoustic transducer having a first metallization ratio, and a second electro-acoustic transducer having a second metallization ratio. The metallization ratio of these is between 0.8 and 0.2, at most, metallization ratio of the first transducer, is 0.8 times that of the metallization ratio of the second transducer.