Filter with bulk acoustic wave device having raised frame structure
AssigneeSkyworks Solutions, Inc.
InventorsYiliu Wang, Jiansong Liu, Nan Wu
Life of this patent
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Abstract
A filter with bulk acoustic wave devices is disclosed. The filter includes a first bulk acoustic wave resonator and a second bulk acoustic wave resonator. The first bulk acoustic wave resonator includes a first raised frame structure. The first raised frame structure is a multi-layer raised frame structure. The second bulk acoustic wave resonator includes a second raised frame structure. The first raised frame structure has at least one more raised frame layer than the second raised frame structure.
Claims20
A filter with bulk acoustic wave devices, the filter comprising:
- a first bulk acoustic wave resonator including a first raised frame structure within an active region, the first raised frame structure being a multi-layer raised frame structure having a multi-gradient raised frame structure;
- and
- a second bulk acoustic wave resonator including a second raised frame structure within the active region, the first raised frame structure having at least one more raised frame layer than the second raised frame structure, the first and second raised frame structures increase reflection of lateral energy within the active region.
A radio frequency module comprising:
- a filter comprising:
- a first bulk acoustic wave resonator including a first raised frame structure, the first raised frame structure being a multi-layer raised frame structure;
- and
- a second bulk acoustic wave resonator including a second raised frame structure, the first raised frame structure having at least one more raised frame layer than the second raised frame structure;
- and
- a radio frequency circuit element coupled to the filter, the filter and the radio frequency circuit element being enclosed within a common package.
A wireless communication device comprising:
- a filter comprising:
- a first bulk acoustic wave resonator including a first raised frame structure, the first raised frame structure being a multi-layer raised frame structure;
- and
- a second bulk acoustic wave resonator including a second raised frame structure, the first raised frame structure having at least one more raised frame layer than the second raised frame structure;
- an antenna operatively coupled to the filter;
- a radio frequency amplifier operatively coupled to the filter and configured to amplify a radio frequency signal;
- and
- a transceiver in communication with the radio frequency amplifier.
Dependencies are inferred from the claim text.