Method and apparatus for acoustic wave inductance
作者： David Penunuri
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摘要: An inductive element for impedance matching comprises an acoustic wave propagating substrate and transducer coupled to the substrate. The has effective length Leff such that Leeff ≧C2 va /fo k2, where C2 is a numerical factor ≧2, represents velocity, fo center frequency k2 denotes electromechanical coupling coefficient. Reflecting elements are provided on in principal propagation directions form resonant cavity. device exhibits high Q over significant range small physical size.
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