Ladder-type surface acoustic wave device
AssigneeQorvo US, Inc.
InventorManjunath Swamy
Life of this patent
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Abstract
The present disclosure relates to a ladder-type surface acoustic wave (SAW) device, which includes a piezoelectric layer, two reflective structures, at least one series interdigital transducer (IDT) coupled between a first signal point and a second signal point, and at least one shunt IDT. The at least one shunt IDT is coupled at least between the first signal point and ground, or between the second signal point and ground. Herein, the two reflective structures, the at least one series IDT, and the at least one shunt IDT reside over the piezoelectric layer. The at least one series IDT and the at least one shunt IDT are arranged between the two reflective structures.
Claims20
A surface acoustic wave (SAW) device, comprising:
- a piezoelectric layer;
- two reflective structures;
- a first shunt interdigital transducer (IDT) coupled between a first signal point and ground;
- and
- a series IDT coupled between a second signal point and a third signal point, wherein:
- the first signal point, the second signal point, the third signal point, and the ground are not directly electrically connected;
- the two reflective structures, the first shunt IDT, and the series IDT reside over the piezoelectric layer;
- and
- the first shunt IDT and the series IDT are arranged between the two reflective structures.
Dependencies are inferred from the claim text.