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US 2023/0067985 A1Published application
Acoustic wave resonator and device for wireless communications
AssigneeHuawei Technologies Co., Ltd.
InventorsShurong Dong, Zhihong Feng
Life of this patent
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Abstract
An acoustic wave resonator for use in a device for wireless communications includes a first electrode, a second electrode, and a piezoelectric layer disposed between the first electrode and the second electrode. The first electrode has a first region made of a material having a first density, and a second region formed as a loop region surrounding the first region and electrically connected to the first region. The second region is made of a material having a second density that is different from the first density.
Claims20
An acoustic wave resonator comprising:
- a first electrode;
- a second electrode;
- and
- a piezoelectric layer made of a piezoelectric material and disposed between the first electrode and the second electrode,
- wherein the first electrode comprises:
- a first region made of a first material having a first density;
- and
- a second region in a loop shape surrounding the first region and electrically connected to the first region, wherein the second region is made of a second material having a second density different from the first density.
5 more elements
A filter comprising:
- an acoustic wave resonator comprising:
- a first electrode;
- a second electrode;
- and
- a piezoelectric layer made of a piezoelectric material and disposed between the first electrode and the second electrode,
- wherein the first electrode comprises:
- a first region made of a first material having a first density;
- and
- a second region formed as a loop region surrounding the first region and electrically connected to the first region, wherein the second region is made of a second material having a second density different from the first density.
6 more elements
A terminal device comprising:
- a transceiver configured to receive or send a signal, wherein the transceiver comprises a filter configured to filter the signal;
- and
- a processor configured to perform signal processing on the signal,
- wherein the filter comprises:
- an acoustic wave resonator comprising:
- a first electrode;
- a second electrode;
- and
- a piezoelectric layer made of a piezoelectric material and disposed between the first electrode and the second electrode,
- wherein the first electrode comprises:
- a first region made of a first material having a first density;
- and
- a second region formed as a loop region surrounding the first region and electrically connected to the first region, wherein the second region is made of a second material having a second density different from the first density.
10 more elements
Dependencies are inferred from the claim text.