Acoustic wave element and communication apparatus
AssigneeKYOCERA Corporation
InventorsTetsuya KISHINO, Tsuyoshi NAKAI
Life of this patent
Estimating the term…
Abstract
An acoustic wave element includes an IDT electrode includes pluralities of electrode fingers, and reflector electrodes on the two sides of the IDT electrode. The IDT electrode includes a major part and at least one end part which is located between the major part and one of the reflector electrodes and is arranged along a direction of propagation of an acoustic wave together with the major part. the at least one end part includes a pitch of the plurality of electrode fingers substantially the same as a pitch of the plurality of electrode fingers in the major part, is electrically connected in parallel with respect to the major part, and is divided into two or more sections which are electrically connected in series with each other.
Claims13
An acoustic wave element, comprising:
- an IDT electrode comprising pluralities of electrode fingers;
- and
- reflector electrodes on the two sides of the IDT electrode, wherein
- the IDT electrode comprises
- a major part and
- at least one end part which is located between the major part and one of the reflector electrodes and is located along a direction of propagation of an acoustic wave together with the major part,
- the at least one end part,
- comprises a pitch of the plurality of electrode fingers, the pitch being substantially the same as a pitch of the plurality of electrode fingers in the major part,
- is electrically connected in parallel with respect to the major part, and
- is divided into two or more sections which are electrically connected in series with each other.
Dependencies are inferred from the claim text.