Title :
Decoupling effect of multi-stepped bi-mesa AT-cut quartz resonators
Author :
Goka, S. ; Tamura, K. ; Sekimoto, H. ; Watanabe, Y. ; Sato, T.
Author_Institution :
Graduate Sch. of Eng., Tokyo Metropolitan Univ., Japan
Abstract :
In this paper, we calculated the mode-coupling characteristics of multi-stepped bi-mesa resonators and compared them with beveled resonators. Calculation results showed that increasing the number of mesa steps reduced coupling between the thickness-shear and thickness-flexure modes. These results indicate that the multi-stepped bi-mesa resonator has a good mode-decoupling effect, and its performance characteristics approach those of the beveled resonator.
Keywords :
crystal resonators; discrete Fourier transforms; finite element analysis; beveled resonator; decoupling effect; mode coupling characteristics; multistepped bimesa AT cut quartz resonators; thickness flexure mode; thickness shear mode; Chemical processes; Discrete Fourier transforms; Etching; Finite element methods; Frequency estimation; Impedance; Temperature;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International
Print_ISBN :
0-7803-7688-9
DOI :
10.1109/FREQ.2003.1275176
