Abstract
Both ZnO and PZT Thin Film Bulk Acoustic Resonator filters were fabricated, tested and modeled in this study. The development of an accurate Mason model allows the effect of particular parasitic components on the microwave s-parameters in the region of the series and parallel resonances to be identified. The parasitic components that limit the performance of our ZnO and PbZr0.3Ti0.7O3 Thin Film Bulk Acoustic Resonator filters are analysed. From an analysis of PbZr0.3Ti0.7O3 Thin Film Bulk Acoustic Resonator measurements values for the longitudinal acoustic velocity and electromechanical coupling coefficient can be derived. Measured PbZr0.3Ti0.7O3 Thin Film Bulk Acoustic Resonator filter responses confirm that the larger electromechanical coupling coefficients in this material compared to ZnO give wider filter band-widths.
Similar content being viewed by others
References
K.M. Lakin, G.R. Kline, K.T. McCarron, IEEE Trans. Microwave Theory and Techniques, vol. 43 (12), Dec. 1995.
Y. Miyasaki, S. Hoshino, S. Takahashi, 1987 Ultrasonics Symposium, 385–393.
L. Mang, F. Hickernell, R. Pennell, T. Hickernell, 1995 IEEE MTT-S Digest, 887–890
A. Yamada, C. Maeda, T. Sato, T. Umemura, F. Uchikawa, K. Misu, S. Wadaka, Integrated Ferroelectrics, vol 22, p353–361 (1998)
Y. Yoshino, S. Iwasa, H. Aoki, Y. Deguchi, Y. Yamamoto, K. Ohwada, Mat. Res. Soc. Proc. Vol.441, 241–246 (1997).
Z. Huang, Q. Zhang and R.W. Whatmore, J. Applied Physics, 85(10), 7355–7361, (1999)
C.T. Lynch, Handbook of Materials Science, vol. 1 General Properties, CRC, Cleveland (1974).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kirby, P., Su, QX., Komuro, E. et al. High Frequency Thin Film Acoustic Ferroelectric Resonators. MRS Online Proceedings Library 655, 171–176 (2000). https://doi.org/10.1557/PROC-655-CC13.7.1
Published:
Issue Date:
DOI: https://doi.org/10.1557/PROC-655-CC13.7.1