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We have developed a measurement-based modeling technique employing Keysight's X-parameter methodology for characterizing nonlinear behavior in thin Film Bulk Acoustic (FBAR) piezoelectric resonators and filters. As a pair of continuous wave (CW) tones at frequencies f1 and f2 are incident upon a resonator, a set of vector measurements of the resonator response are performed at each of the integer...
Microwave acoustic filters operated at high power levels generate nonlinear mixing products necessitating improved nonlinear modeling. The latest communications protocols place strict limits on such mixing products including the generation of intermodulation distortion products, which desensitize a receiver, as well as second harmonic emissions. We extend the conventional nonlinear acoustic theory...
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