Back to Search
Start Over
On the Efficiency of Excitation of High Coupling Plate Acoustic Modes
- Source :
- 2020 IEEE International Ultrasonics Symposium (IUS).
- Publication Year :
- 2020
- Publisher :
- IEEE, 2020.
-
Abstract
- Blotekjear's formalism is applied towards the analysis of the IDT excitation efficiency of high coupling plate acoustic wave modes in thin-film piezoelectric membranes. The results indicate an offset of the optimum mark-to-pitch ratio towards values below 0.5 for the excitation of the fundamental mode and the suppression of the 3 rd harmonic. The predicted behavior is confirmed by FEM analysis of the excitation of the low-dispersion SH0 mode in thin-film 30Y-X LiNbO3 membrane.
- Subjects :
- Materials science
Offset (computer science)
020208 electrical & electronic engineering
02 engineering and technology
Acoustic wave
01 natural sciences
Piezoelectricity
Finite element method
Formalism (philosophy of mathematics)
Membrane
Lamb waves
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Atomic physics
010301 acoustics
Excitation
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2020 IEEE International Ultrasonics Symposium (IUS)
- Accession number :
- edsair.doi...........a9da458e9d561c61a1a688618e1a9c7a