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所属单位：航空学院
发表刊物：Proc. Symp. Piezoelectricity, Acoust. Waves, Dev. Appl., SPAWDA
摘要：Dielectric loss is inevitable for many piezoelectric materials and it will lead to the dissipation of energy for wave motion. In this paper, we study wave propagation in piezoelectric layered structure of the thin film bulk acoustic resonator (FBAR) with dielectric loss. When the dielectric loss is considered, dielectric constants are complex and the waves are damped which means wavenumber is complex. Thus, the dispersion equations were derived first, and then three dimensional dispersion curves were given in the range of real frequency and complex wavenumber. Further analyses on the characteristics of the wave were made based on the 3D dispersion curves, and the attenuation of the wave was shown. A comparison with the results obtained from the model without dielectric loss was also discussed. © 2017 IEEE.
是否译文：否
发表时间：2018-04-17
合写作者：朱峰,钱征华
通讯作者：王彬,钱征华