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1. 发明授权

US06437484B1 Piezoelectric resonator 失效
标题翻译：压电谐振器
公开(公告)号：US06437484B1
公开(公告)日：2002-08-20
申请号：US09472944
申请日：1999-12-27
申请人： Michiaki Nishimura , Kousei Kamigaki , Ken-ichi Yoshimura , Hirotaka Tsuyoshi
发明人： Michiaki Nishimura , Kousei Kamigaki , Ken-ichi Yoshimura , Hirotaka Tsuyoshi
IPC分类号： H01L4108
CPC分类号： H03H9/0561 , H03H9/0509 , H03H9/173 , H03H9/174 , H03H9/175 , H03H9/178
摘要： A piezoelectric resonator having a resonator element in or on a substrate, said resonator element comprising a laminate of a plurality of piezoelectric ceramic layers and a plurality of electrode layers which are alternately laminated one upon the other, the piezoelectric ceramic layers neighboring up and down being set to oscillate in opposite phases relative to each other. In the piezoelectric resonator, the piezoelectric ceramic layers neighboring up and down undergo the thickness longitudinal oscillation in opposite phases, suppressing the oscillation of the fundamental mode and strongly exciting the oscillation of a mode of a high degree of not lower than the second degree. The piezoelectric resonator utilizing the mode of a high degree of not lower than the second degree is little affected by spurious caused by the oscillation of the fundamental mode.
摘要翻译：一种压电谐振器，其具有在基板中或基板上的谐振器元件，所述谐振元件包括多个压电陶瓷层和多个彼此交替层叠的多个电极层的层压体，所述压电陶瓷层上下相邻设置为相对于彼此以相反的相位摆动。在压电谐振器中，上下相邻的压电陶瓷层经历相反相位的厚度纵向振荡，抑制基模的振荡并强烈激发不低于第二度的高度模式的振荡。利用不低于第二度的高度模式的压电谐振器几乎不受由基模振荡引起的杂散影响。

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