A MODIFIED PIBVD MODEL FOR LAMB WAVE RESONATOR

作者：Wang, Yong^*; Hong, Yan; Goh, Wang Ling; Mu, Xiaojing

来源：Microwave and Optical Technology Letters, 2017, 59(3): 703-706.

DOI：10.1002/mop.30372

• inter-digital capacitance
• surface acoustic
• lateral field excitation (LFE)
• bulk acoustic wave (BAW)
• MEMS

The advances in semiconductor fabrication technologies have enabled the integration of Lamb-wave resonator on silicon substrate. But such integration has led to additional parasitic effects to the Lamb-wave resonators. The availability of an efficient equivalent-circuit model is thus vital. This paper proposes a modified hybrid -type/Butterworth-Van Dyke (PiBVD) model. Compared with the conventional PiBVD model, the modified PiBVD model accounts for the parasitic inductances of the bonding wires. It therefore provides better accuracy when characterizing Lamb-wave resonators over a wide frequency range. Experiment results have also verified that the modified PiBVD model has better fitting on Y11 (input reflection factor in Y-parameter matrix).

• 出版日期2017-3
• 单位南阳理工学院; 重庆大学