Patent ID: 6900577

Claim:
A surface acoustic wave device comprising: a piezoelectric substrate; a plurality of surface acoustic wave filters having input terminals, output terminals and different center frequencies are provided on the piezoelectric substrate, in which either the input terminals or the output terminals, or both the input terminals and the output terminals of the plurality of surface acoustic wave filters are integrated; wherein a surface acoustic wave filter of the plurality of surface acoustic wave filters having a higher center frequency is arranged to suppress a spurious response within a passband and/or in a proximity of a high-frequency side outside the passband a surface acoustic wave filter of the plurality of surface acoustic wave filters having a lower center frequency; the surface acoustic wave filter having the higher center frequency includes an interdigital electrode transducer and reflectors sandwiching the interdigital electrode transducer; and the reflectors have at least one region that differs in at least one of width and pitch of electrode fingers from another region.