Title :
Dispersion relations of SAW propagating under Al grating on 128°YX-LiNbO3
Author :
Xu, Fang-qian ; Jin, Bu-ping
Author_Institution :
Dept. of Electr. & Inf., Zhejiang Inst. of Commun. & Media, Hangzhou
Abstract :
Based on discrete Green function and finite element method, properties about surface acoustic waves propagating under periodic Al grating on 128degYX-LiNbO3 substrate were studied. The dispersion relations of SAW and COM parameters for Al strips of different thickness are given, which can theoretically support the design of relevant SAW filters.
Keywords :
Green´s function methods; acoustic wave propagation; aluminium; diffraction gratings; dispersion relations; finite element analysis; periodic structures; surface acoustic waves; Al; LiNbO3; discrete Green function method; dispersion relations; finite element method; periodic grating; surface acoustic waves; Acoustic propagation; Acoustic waves; Dispersion; Finite element methods; Gratings; Green function; Permittivity; SAW filters; Strips; Surface acoustic waves; COM parameter; Finite element method; dispersion relation; surface acoustic wave;
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-2891-5
DOI :
10.1109/SPAWDA.2008.4775744
