Component · Analog, RF & Mixed-Signal
FBAR (Film Bulk Acoustic Resonator)
A BAW resonator in which the piezoelectric stack is suspended over an air cavity rather than an acoustic mirror, giving very high Q. Multiple resonators are combined in ladder networks to form filters and duplexers.
- Type
- Component
- Domain
- Analog, RF & Mixed-Signal, RF front end
Notes
Developed and commercialised by Agilent and then Avago, now Broadcom, and a long-standing source of patent litigation.
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