Acoustic wave filter with bulk acoustic wave devices having multiple raised frame structures
AssigneeSkyworks Solutions, Inc.
InventorsYiliu Wang, Jiansong Liu, Nan Wu
Life of this patent
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Abstract
An acoustic wave filter with different 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
An acoustic wave filter with at least two bulk acoustic wave devices, the acoustic wave filter comprising:
- a first bulk acoustic wave resonator including a first raised frame structure within an active region, the first raised frame structure having a first plurality of raised frame layers;
- and
- a second bulk acoustic wave resonator including a second raised frame structure within the active region, the second raised frame structure including at least a second raised frame layer, the first raised frame structure having at least one more raised frame layer than the second raised frame structure.
An acoustic wave filter module comprising:
- an acoustic wave filter including a first bulk acoustic wave resonator including a first raised frame structure within an active region, the first raised frame structure having a first plurality of raised frame layers, and a second bulk acoustic wave resonator including a second raised frame structure within the active region, the second raised frame structure including at least a second raised frame layer, 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 acoustic wave filter, the acoustic wave filter and the radio frequency circuit element being enclosed within a common package.
A wireless communications device comprising:
- an acoustic wave filter including a first bulk acoustic wave resonator including a first raised frame structure within an active region, the first raised frame structure having a first plurality of raised frame layers, and a second bulk acoustic wave resonator including a second raised frame structure within the active region, the second raised frame structure including at least a second raised frame layer, 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 acoustic wave filter;
- a radio frequency amplifier operatively coupled to the acoustic wave 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.