Title :
A method for analyzing periodic strips with apodization
Author :
Danicki, Eugene J.
Author_Institution :
Inst. of Fundamental Technol. Res., Polish Acad. of Sci., Warsaw
fDate :
9/1/2008 12:00:00 AM
Abstract :
Interdigital transducers applied in surface acoustic wave devices have fingers (conducting strips) of varying lengths defining the transducer apodization. Most theoretical papers neglect finite fingers´ length in evaluation of the electric field in the transducer plane and the transducer´s capacitance. This letter presents the generalized Blotekjaer, Ingebrigtsen, and Skeie´s expansion analysis that may help in filling this gap in the transducer theory.
Keywords :
acoustic imaging; capacitance; interdigital transducers; surface acoustic wave transducers; Ingebrigtsen expansion analysis; Skeie´s expansion analysis; apodization; capacitance; conducting strips; electric field; generalized Blotekjaer analysis; interdigital transducers; periodic strips; surface acoustic wave devices; Anisotropic magnetoresistance; Electric potential; Equations; Green function; Strips; Voltage; Acoustics; Algorithms; Computer Simulation; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Models, Theoretical; Scattering, Radiation; Transducers;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
