Patent ID: 11949403
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. An acoustic resonator device comprising:
a substrate;
a piezoelectric plate above the substrate; and
an interdigital transducer (IDT) including interleaved fingers on the piezoelectric plate, the IDT comprising:
a first set of fingers extending from a first busbar, and
a second set of fingers extending from a second busbar, the second set of fingers parallel to and interleaved with the first set of fingers, wherein
the pitch and mark of at least part of the IDT cycle between a first pitch/mark combination P1/M1, a second pitch/mark combination P2/M2, and a third pitch/mark combination P3/M3 along a length of the IDT, where P1≠P2≠P3 and M1≠M2≠M3.