DocumentCode
2841538
Title
Trapped-energy piezoelectric resonators with elliptical ring electrodes
Author
Nakamura, Kiyoshi ; Yasuike, Ryoichi ; Hirama, Koichi ; Shimizu, Hiroshi
Author_Institution
Tohoku Univ., Sendai, Japan
fYear
1990
fDate
23-25 May 1990
Firstpage
372
Lastpage
377
Abstract
Trapped-energy piezoelectric resonators with elliptical ring electrodes conforming to the anisotropy in the piezoelectric plate are investigated. In this piezoelectric resonator, the electrode size can be arbitrarily large without causing inharmonic overtone resonances, and therefore the resonator has a low series resistance. Some resonators with elliptical ring electrodes have been fabricated using ceramic and AT-cut quartz plates. It is shown that these resonators have series resistances lower than those of conventional resonators
Keywords
ceramics; crystal resonators; quartz; AT-cut quartz plates; anisotropy; electrode size; elliptical ring electrodes; low series resistance; piezoelectric plate; trapped energy piezoelectric resonators; Anisotropic magnetoresistance; Ceramics; Cutoff frequency; Electric resistance; Electrodes; Impedance; Partial differential equations; Product design; Resonance; Shape;
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.1990.177522
Filename
177522
Link To Document