TY - GEN
T1 - Sensitivity of electroelastic effect to nonlinear material behavior in langasite resonators
AU - Haifeng, Zhang
AU - Turner, Joseph A.
AU - Jiashi, Yang
AU - Kosinski, John A.
PY - 2006
Y1 - 2006
N2 - Langasite is of interest for resonator applications for several reasons including its good temperature behavior, good piezoelectric coupling, low acoustic loss and high Q factor. Biasing effects for such resonators, crucial for design applications, depend on an accurate understanding of the effects from nonlinear material constants. Accurate experimental determination of the nonlinear elastic, piezoelectric, dielectric and electrostrictive constants requires the evaluation of the contribution of different nonlinear material constants to the biasing effect. In this article, the shift of resonant frequency due to applied electrical field is discussed for thickness-mode langasite resonators. The resonant frequency is determined as a function of static electrical field applied in the thickness direction. A variety of plano-plano langasite resonators with different material orientations are considered. Of particular interest for this article is the sensitivity of the observed frequency shifts with respect to changes in the nonlinear elastic, piezoelectric, electrostrictive and dielectric constants. First-order perturbation integral theory is used for the theory and numerical analysis to determine the frequency shifts and sensitivities. Implications with respect to interpretation of measurements are discussed.
AB - Langasite is of interest for resonator applications for several reasons including its good temperature behavior, good piezoelectric coupling, low acoustic loss and high Q factor. Biasing effects for such resonators, crucial for design applications, depend on an accurate understanding of the effects from nonlinear material constants. Accurate experimental determination of the nonlinear elastic, piezoelectric, dielectric and electrostrictive constants requires the evaluation of the contribution of different nonlinear material constants to the biasing effect. In this article, the shift of resonant frequency due to applied electrical field is discussed for thickness-mode langasite resonators. The resonant frequency is determined as a function of static electrical field applied in the thickness direction. A variety of plano-plano langasite resonators with different material orientations are considered. Of particular interest for this article is the sensitivity of the observed frequency shifts with respect to changes in the nonlinear elastic, piezoelectric, electrostrictive and dielectric constants. First-order perturbation integral theory is used for the theory and numerical analysis to determine the frequency shifts and sensitivities. Implications with respect to interpretation of measurements are discussed.
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U2 - 10.1109/FREQ.2006.275467
DO - 10.1109/FREQ.2006.275467
M3 - Conference contribution
AN - SCOPUS:39049130766
SN - 1424400740
SN - 9781424400744
T3 - Proceedings of the IEEE International Frequency Control Symposium and Exposition
SP - 670
EP - 675
BT - 2006 IEEE International Frequency Control Symposium and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 IEEE International Frequency Control Symposium and Exposition
Y2 - 4 June 2006 through 7 June 2006
ER -