Diplexer using decoupled transversely-excited film bulk acoustic resonators
US12224735B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Dec 3, 2021 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Jun 16, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H3/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Diplexers, filter devices, and methods are disclosed. A diplexer includes a first chip comprising series resonators of a high band filter, a second chip comprising shunt resonators of the high band filter and series resonators of a low band filters, and a third chip comprising shunt resonators of the low band filter. The series resonators and the shunt resonators of the high band filter are decoupled transversely-excited film bulk acoustic resonators (DXBARs). The series resonators and the shunt resonators of the low band filter are transversely-excited film bulk acoustic resonators (XBARs).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.