Patent ID: 11955949
Assignee: WISOL CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A resonator comprising:
an interdigital transducer (IDT) including a first electrode including a first base formed on a piezoelectric substrate and extended in a reference direction, and a plurality of first protrusions connected to the first base and extended in a direction intersecting with the reference direction, and a second electrode including a second base formed on the piezoelectric substrate and extended in the reference direction, and a plurality of second protrusions connected to the second base and extended in a direction intersecting with the reference direction, each of the second protrusions being extended to have any one first protrusion among the plurality of first protrusions inserted between the second protrusion and another second protrusion adjacent to the second protrusion, wherein
a width, along the reference direction, of each of a plurality of first specific protrusions included between one end of the IDT and a first position at a first distance from the one end, among the plurality of first protrusions and the plurality of second protrusions, decreases from a first specific protrusion closest to the first position toward a first specific protrusion closest to the one end.