Title :
Spectral theory of NSPUDT-Rayleigh wave case
Author_Institution :
Polish Acad. of Sci., Warsaw, Poland
Abstract :
A spectral theory of natural single-phase unidirectional transducers that was developed for the case of B-G waves by the author (1990 IEEE Ultras. Symp. Proc., p.113-16) is completed for the general case of Rayleigh waves. The main results of the theory presented are a new description of piezoelectric halfspace that can have many applications in modeling SAW devices, and a final rigorous expression for the P-matrix of an interdigital transducer accounting for the mechanical properties of its electrodes and the general anisotropic property of the piezoelectric substrate. A corresponding relation for the NSPUDT (natural single-phase unidirectional transducer) is just a particular case of the theory
Keywords :
Rayleigh waves; acoustic transducers; piezoelectric transducers; surface acoustic wave devices; ultrasonic transducers; NSPUDT; P-matrix; Rayleigh wave; anisotropic property; electrodes; interdigital transducer; mechanical properties; modeling SAW devices; natural single-phase unidirectional transducers; piezoelectric halfspace; piezoelectric substrate; spectral theory; Computer aided software engineering; Councils; Electrodes; Fingers; Kinematics; Mechanical factors; OFDM modulation; Strips; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234144
