A nonlinear elastic model for predicting triple beat in SAW duplexers

Author

Inoue, Shingo ; Hara, Masaki ; Iwaki, M. ; Tsutsumi, J. ; Nakamura, Hajime ; Ueda, Makoto ; Satoh, Y. ; Mitobe, S.

Author_Institution

Microdevice R&D Dept., Taiyo Yuden Co., Ltd., Akashi, Japan

fYear

2011

fDate

18-21 Oct. 2011

Firstpage

1837

Lastpage

1841

Abstract

This paper proposes simple and precise nonlinear simulation techniques for surface acoustic wave (SAW) duplexers, especially for the in-band 3rd order nonlinear distortion, the so-called `triple beat´. The simulation model is based on the nonlinearity of SAW stress vs. strain (nonlinear elasticity of SAW), and needs just one nonlinear parameter, which represents the 3rd order nonlinear coefficient for the elastic constant. The simulation results of the triple beat for 1.9 GHz Personal Communications Service (PCS) SAW duplexers demonstrate fairly good agreement with the measurements with an accuracy of less than 1 dB.

Keywords

elastic constants; elasticity; personal communication networks; stress-strain relations; surface acoustic wave devices; 3rd order nonlinear coefficient; SAW duplexer; SAW nonlinear elasticity; SAW stress-strain relationship; elastic constant; frequency 1.9 GHz; in-band 3rd order nonlinear distortion; nonlinear elastic model; nonlinear parameter; nonlinear simulation technique; personal communication service SAW duplexer; surface acoustic wave duplexer; triple beat; Elasticity; Integrated circuit modeling; Jamming; Resonator filters; Stress; Surface acoustic waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2011 IEEE International

Conference_Location

Orlando, FL

ISSN

1948-5719

Print_ISBN

978-1-4577-1253-1

Type

conf

DOI

10.1109/ULTSYM.2011.0459

Filename

6293256