Transversely-excited film bulk acoustic resonator filters with sub-resonators having different mark and pitch
US12028049B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Nov 7, 2021 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2003/023
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Radio frequency filters are disclosed. A filter includes a first transversely-excited film bulk acoustic resonator (XBAR) having a first sub-resonator and a second sub-resonator connected in parallel. A pitch of the first sub-resonator is not equal to a pitch of the second sub-resonator and/or a mark of the first sub-resonator is not equal to a mark of the second sub-resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.