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US 2018/0123555 A1Published application
Filter including bulk acoustic wave resonator
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJune Kyoo LEE
Life of this patent
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Abstract
A filter includes: a series resonator group; and a shunt resonator group disposed between the series resonator group and a ground, wherein either one or both of the series resonator group and the shunt resonator group includes a first resonator and a second resonator connected to each other in a state in which C axis directions of the first resonator and the second resonator are opposite to each other, a third resonator connected to the first resonator in series, and a fourth resonator connected to the second resonator in series.
Claims16
A filter comprising:
- a series resonator group;
- and
- a shunt resonator group disposed between the series resonator group and a ground,
- wherein either one or both of the series resonator group and the shunt resonator group comprises
- a first resonator and a second resonator connected to each other in a state in which C axis directions of the first resonator and the second resonator are opposite to each other,
- a third resonator connected to the first resonator in series, and
- a fourth resonator connected to the second resonator in series.
4 more elements
A filter comprising:
- a series resonator group;
- and
- a shunt resonator group disposed between the series resonator group and a ground,
- wherein either one or both of the series resonator group and the shunt resonator group comprises
- a first resonator and a second resonator connected to each other in a state in which C axis directions of the first resonator and the second resonator are opposite to each other,
- a third resonator connected to the first resonator in parallel, and
- a fourth resonator connected to the second resonator in parallel.
4 more elements
Dependencies are inferred from the claim text.