Title :
A precise nonlinear simulation for SAW duplexers considering nonlinear elasticity
Author :
Inoue, S. ; Mitobe, S. ; Hara, M. ; Iwaki, M. ; Tsutsumi, J. ; Nakamura, H. ; Ueda, M. ; Satoh, Y.
Author_Institution :
Microdevice R&D Dept., Taiyo Yuden Co., Ltd., Takasaki, Japan
Abstract :
This paper proposes a precise nonlinear simulation technique for surface acoustic wave (SAW) duplexers, especially for the in-band 3rd order nonlinear distortion, the so-called ´triple beat´. The model is based on the nonlinearity of SAW stress vs. strain (nonlinear elasticity), and needs just one nonlinear parameter, which represents the 3rd order nonlinear coefficient for the elastic constant. The simulation results for 1.9 GHz Personal Communications Service (PCS) SAW duplexers demonstrate fairly good agreement with the measurements with a discrepancy of only 1 dB.
Keywords :
elastic constants; nonlinear distortion; personal communication networks; surface acoustic wave devices; 3rd-order nonlinear coefficient; PCS; SAW duplexers; SAW strain; SAW stress; elastic constant; frequency 1.9 GHz; in-band 3rd-order nonlinear distortion; nonlinear elasticity; personal communications service; precise nonlinear simulation technique; surface acoustic wave duplexers; triple-beat distortion; Elasticity; Filtering theory; Frequency measurement; Jamming; Microwave filters; Resonator filters; Surface acoustic waves;
Conference_Titel :
Microwave Conference (EuMC), 2011 41st European
Conference_Location :
Manchester
Print_ISBN :
978-1-61284-235-6
