Two-port SAW resonator using series connected IDTs

Author

Kojima, Toshihiro ; Obara, Hiroyuki

Author_Institution

Fac. of Eng., Tamagawa Univ., Machida, Japan

Volume

1

fYear

1998

fDate

1998

Firstpage

81

Abstract

A two-port SAW resonator using series connected IDTs is proposed. This type of resonator has an advantage over a conventional two-port SAW resonator in that the design condition of the number of finger pairs of an IDT for high performance is not strict, since the impedance level of series connected IDTs is very high. We have analyzed this type of resonator using six-port equivalent circuits and their transfer matrices of an N-pair of IDT for series connection. Finally, by numerical calculation, the resonance characteristics of these types of resonator on LiNbO₃ (128° Y,X) are investigated

Keywords

equivalent circuits; interdigital transducers; surface acoustic wave resonator filters; surface acoustic wave resonators; transfer function matrices; LiNbO₃; design condition; high impedance level; high performance; insertion loss; number of finger pairs; series connected IDT; six-port equivalent circuits; transfer matrices; two-port SAW resonator; Capacitance; Equivalent circuits; Fingers; Frequency; Impedance; Insertion loss; Resonance; Surface acoustic wave devices; Surface acoustic waves; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE

Conference_Location

Sendai

ISSN

1051-0117

Print_ISBN

0-7803-4095-7

Type

conf

DOI

10.1109/ULTSYM.1998.762104

Filename

762104