Measurement of nonlinear effects for anti-series and anti-parallel connections of power bulk acoustic wave resonators

Characterisation and analysis of harmonic emissions in nonlinear bulk acoustic wave resonators

“…However, the piezoelectric-based acoustic devices exhibit nonlinear characteristics at high power levels and cause problems in mobile communication systems such as inter-modulation distortion, spurious harmonics emissions and triple beat products [2][3][4]. Because recent communications standards require stringent linearity for radio frequency filters and duplexers, various methods to reduce the harmonics have been demonstrated [5,6].…”