Simulation of surface acoustic wave devices

Author

Yu, Sang Dae

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Kyungpook Nat. Univ., Taegu, South Korea

Volume

51

Issue

5

fYear

2004

fDate

5/1/2004 12:00:00 AM

Firstpage

616

Lastpage

623

Abstract

The Mason crossed-field circuit model is generalized to simulate apodized interdigital transducers without channel division. The apodized transducer model is based on the transmission line model, and the artificial transformer with different voltage and current coupling ratios is used to independently obtain the transfer function and radiation admittance. In addition, a heuristic expression for transformer current ratios is used to approximate the radiation admittance of apodized transducers. Through comparing with the multichannel model, this unichannel model is illustrated to successfully describe the frequency response of apodized interdigital transducers.

Keywords

interdigital transducers; surface acoustic wave transducers; Mason crossed-field circuit model; apodized interdigital transducers; heuristic expression; radiation admittance; surface acoustic wave devices; transfer function; transformer current ratios; transmission line model; Acoustic transducers; Acoustic waves; Circuit simulation; Coupling circuits; Distributed parameter circuits; Equivalent circuits; Piezoelectric transducers; SPICE; Surface acoustic wave devices; Surface acoustic waves;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2004.1320833

Filename

1320833