Variational analysis of new shape length extensional mode quartz crystal resonator taking account of lateral motion

Author

Kawashima, Hirofumi ; Nakazato, Mitsuhiro

Author_Institution

Seiko Electron. Components Ltd., Tochigi, Japan

fYear

1990

fDate

23-25 May 1990

Firstpage

378

Lastpage

386

Abstract

A new shape length extensional mode quartz crystal resonator with a resonant frequency of 500 kHz to 1.536 MHz is proposed. It is especially suitable for a surface mounting. The resonant frequency, the frequency temperature behavior and the electrical characteristics of the new shape resonator, taking lateral motion into account, are analyzed and examined. In the analysis procedure, an equation of motion of the new shape length extensional mode quartz crystal resonator consisting of a vibrational portion and supporting portions is derived from an energy method. From the obtained equation of motion, the frequency equation is easily calculated. The frequency characteristics, the frequency temperature behavior, and the electrical characteristics of the resonator are analyzed and compared with the measured values. It is shown that the results agree well

Keywords

crystal resonators; quartz; 0.5 to 1.536 MHz; analysis procedure; electrical characteristics; equation of motion; frequency equation; frequency temperature behavior; lateral motion; length extensional mode quartz crystal resonator; resonant frequency; shaped crystal resonator; supporting portions; surface mounting; vibrational portion; Consumer products; Electric shock; Electric variables; Electronic components; Equations; Etching; Motion analysis; Resonant frequency; Shape; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control, 1990., Proceedings of the 44th Annual Symposium on

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/FREQ.1990.177523

Filename

177523