DocumentCode
1279114
Title
New orientations for bulk-acoustic-wave devices
Author
Elias, Elizabeth ; Jhunjhunwala, Ashok
Author_Institution
Dept. of Electr. Eng., Indian Inst. of Technol., Madras, India
Volume
37
Issue
3
fYear
1990
fDate
5/1/1990 12:00:00 AM
Firstpage
230
Lastpage
232
Abstract
Several new materials/orientations for which strong BAW (bulk acoustic wave) response is predicted are presented. These new materials/orientations have much lower insertion losses and therefore present the possibility of superior BAW devices. The results also point out some correspondence between pseudo-SAW and bulk acoustic waves. The pseudo-SAW waves cannot theoretically exist in a semiinfinite piezoelectric half-space. The presence of a pseudo-SAW pole with high coupling coefficient (related to the residue of the pole) indicates a strong bulk wave being launched into the medium.<>
Keywords
piezoelectric devices; ultrasonic devices; BAW devices; bulk-acoustic-wave devices; coupling coefficient; insertion losses; pseudo-SAW; semiinfinite piezoelectric half-space; Acoustic devices; Acoustic transducers; Acoustic waves; Bulk acoustic wave devices; Fingers; Frequency; Sociotechnical systems; Surface acoustic wave devices; Surface acoustic waves; Surface waves;
fLanguage
English
Journal_Title
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher
ieee
ISSN
0885-3010
Type
jour
DOI
10.1109/58.55313
Filename
55313
Link To Document