TY - GEN
T1 - Nonlinear time domain-FFT study of the f - 2f frequency response of lithium niobate YX-127o SAW resonators
AU - Yong, Yook Kong
AU - Pang, Xiangnan
N1 - Funding Information:
This work was sponsored in part by Qorvo Inc. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressly or implied, of Qorvo Inc.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/27
Y1 - 2017/10/27
N2 - The nonlinear characteristics of SAW resonators have been of great interest recently. We present a new nonlinear solution algorithm for the f-2f nonlinear coupling phenomenon in SAW IDT resonators. Specifically we have applied our algorithm to obtain the f-2f frequency response of the lithium niobate YX-127o SAW IDT resonators. Lithium niobate was chosen because a complete set of its nonlinear material constants was known and published in the literature. The algorithm consisted of solving the nonlinear finite amplitude model in the time domain to obtain the time dependent response, and then performing a fast Fourier transform of the time dependent response. In order to minimize the transient response, the initial conditions for the time domain solution were obtained from the frequency response of the linear model. Results were presented for a one-electrode IDT SAW resonator at increasing drive voltages. The charge on the electrode IDT for the nonlinearly generated 2f mode increased with the square of the magnitude of f mode drive level voltage.
AB - The nonlinear characteristics of SAW resonators have been of great interest recently. We present a new nonlinear solution algorithm for the f-2f nonlinear coupling phenomenon in SAW IDT resonators. Specifically we have applied our algorithm to obtain the f-2f frequency response of the lithium niobate YX-127o SAW IDT resonators. Lithium niobate was chosen because a complete set of its nonlinear material constants was known and published in the literature. The algorithm consisted of solving the nonlinear finite amplitude model in the time domain to obtain the time dependent response, and then performing a fast Fourier transform of the time dependent response. In order to minimize the transient response, the initial conditions for the time domain solution were obtained from the frequency response of the linear model. Results were presented for a one-electrode IDT SAW resonator at increasing drive voltages. The charge on the electrode IDT for the nonlinearly generated 2f mode increased with the square of the magnitude of f mode drive level voltage.
KW - f-2f nonlinear coupling
KW - lithium niobate YX-127 SAW IDT resonators
KW - nonlinear SAW IDT
KW - nonlinear vibrations
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U2 - 10.1109/FCS.2017.8088848
DO - 10.1109/FCS.2017.8088848
M3 - Conference contribution
AN - SCOPUS:85040188178
T3 - 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings
SP - 210
EP - 211
BT - 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017
Y2 - 9 July 2017 through 13 July 2017
ER -