Title :
A simple equivalent circuit for interdigital transducers based on the coupled-mode approach
Author :
Nakamura, Kiyoshi
Author_Institution :
Fac. of Eng., Tohoku Univ., Sendai, Japan
Abstract :
The coupled-mode approach is known as a powerful tool for analyzing SAW periodic structures such as reflectors and interdigital transducers. The relation among the terminal quantities at two acoustical ports and one electrical port of an interdigital transducers are derived from the coupled-mode equations, and a simple distributed-parameter equivalent circuit representing these relations is proposed. Several examples of applications of this equivalent circuit to SAW devices are also presented
Keywords :
acoustoelectric transducers; equivalent circuits; surface acoustic wave devices; SAW periodic structures; coupled-mode approach; distributed-parameter equivalent circuit; equivalent circuit; interdigital transducers; reflectors; Acoustic transducers; Acoustical engineering; Coupling circuits; Electrodes; Equations; Equivalent circuits; Periodic structures; Power engineering and energy; Surface acoustic wave devices; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234143
