= Thin-film bulk acoustic resonator
{wiki=Thin-film_bulk_acoustic_resonator}
A Thin-Film Bulk Acoustic Resonator (FBAR) is a type of acoustic wave device that utilizes thin-film technology to generate and detect acoustic waves, usually for frequency control and filtering applications. FBARs are primarily used in RF (radio frequency) and microwave circuits, such as in wireless communication systems, to improve performance in terms of size, efficiency, and frequency response.
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