Title :
Acoustic surface waves in piezoelectric materials with periodic metal strips on the surface
Author :
Blotekjaer, K. ; Ingebrigtsen, Kjell A. ; Skeie, Halvor
Author_Institution :
University of Trondheim, Trondheim, Norway
fDate :
12/1/1973 12:00:00 AM
Abstract :
Dispersion relations for acoustic surface waves in piezoelectrics with periodic metal strips applied to the surface are developed. Particular emphasis is given to the modification in effective piezoelectric coupling due to strip geometry, and the details of the dispersion relations around the stop bands. The general results are applied to discuss devices such as multistrip directional couplers and strip-coupled amplifiers.
Keywords :
Directional couplers; Dispersion; Geometry; Permittivity; Piezoelectric materials; Strips; Surface acoustic wave devices; Surface acoustic waves; Surface treatment; Surface waves;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/T-ED.1973.17807