Design of STW resonators on langasite using experimentally determined COM parameters

Author

Mitrofanov, I.S. ; Perevalov, A.V. ; Bigler, E.

Author_Institution

Avangard-Elionica Co., St. Petersburg, Russia

Volume

2

fYear

1999

fDate

1999

Firstpage

875

Abstract

This paper presents the design of the Surface Transverse Wave (STW) resonators on langasite. The empirical values of coupling-of-modes (COM) parameters are shown, and a comparison between the theoretical resonator responses computed with these values and measured responses is performed. The resonance and antiresonance frequencies are evaluated as a function of the thickness of metal electrodes. Results for STW resonator response on langasite exhibit very important differences with respect to similar STW devices built on ST and AT quartz. Finally, temperature sensitivity of the STW langasite resonators has been measured and compared to theoretical predictions based on various sets of published material constants

Keywords

electron device testing; equivalent circuits; lanthanum compounds; piezoelectric materials; surface acoustic wave resonators; AT quartz; COM parameters; LaGaSiO; ST quartz; STW resonators; Surface Transverse Wave resonators; antiresonance frequencies; coupling-of-modes parameters; frequency response; langasite; measured responses; metal electrodes; metallisation; resonance frequencies; resonator responses; temperature sensitivity; thickness; Acoustic materials; Aluminum; Arrayed waveguide gratings; Dielectric constant; Dielectric substrates; Geometry; Metallization; Mirrors; Resonance; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European

Conference_Location

Besancon

ISSN

1075-6787

Print_ISBN

0-7803-5400-1

Type

conf

DOI

10.1109/FREQ.1999.841444

Filename

841444