DocumentCode
3292285
Title
Transformer ratio and capacitance in general form for equivalent circuit of SAW IDTs
Author
Shiba, Takashi ; Yamada, Jun ; Yuhara, Akitsuna
Author_Institution
Hitachi Ltd., Yokohama, Japan
fYear
1991
fDate
8-11 Dec 1991
Firstpage
101
Abstract
The transformer ratio and capacitance in an equivalent circuit for an interdigital surface acoustic wave transducer are presented in general form. The relation between these parameters and the input admittance for one periodic section of the equivalent circuit is calculated. Using these calculated values and the admittance formula of H. Engan (1975), the parameters are finally determined as a function of metallization ratio, harmonic number, and material constants. The results are verified by experiments
Keywords
acoustic transducers; equivalent circuits; surface acoustic wave devices; SAW IDTs; capacitance; equivalent circuit; harmonic number; input admittance; interdigital surface acoustic wave transducer; material constants; metallization ratio; transformer ratio; Acoustic transducers; Acoustic waves; Admittance; Capacitance; Electrodes; Equivalent circuits; Frequency; Solids; Surface acoustic waves; Ultrasonic transducers;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location
Orlando, FL
Type
conf
DOI
10.1109/ULTSYM.1991.234135
Filename
234135
Link To Document