Title :
Influence of conducting layer and conducting electrode on acoustic waves propagating in potassium niobate plates
Author :
Zaitsev, Boris D. ; Joshi, Shrinivas G. ; Kuznetsova, Iren E. ; Borodina, Irina A.
Author_Institution :
Inst. of Radio Eng. & Electron., Acad. of Sci., Saratov, Russia
fDate :
3/1/2001 12:00:00 AM
Abstract :
The influence of a thin conducting layer and a conducting electrode on the characteristics of acoustic waves propagating in thin plates of potassium niobate is investigated theoretically. The variations in velocity and attenuation as high as 50% and 30 dB per wavelength, respectively, can be achieved for a change in conductance of the thin film layer from 10/sup -7/ to 10/sup -5/ S.
Keywords :
piezoelectric materials; potassium compounds; surface acoustic waves; KNbO/sub 3/; SAW attenuation; SAW propagation; acoustic wave propagation; conductance change; conducting electrode; fractional velocity change; piezoelectric plate; thin conducting layer; thin plates; Acoustic propagation; Acoustic waves; Boundary conditions; Conducting materials; Electrodes; Niobium compounds; Optical propagation; Optical surface waves; Surface acoustic wave devices; Surface acoustic waves;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
