发明名称 |
Multiple resonator or filter vibrating in a coupled mode |
摘要 |
A multiple resonator or filter is described in the form of a rectangular bar of piezoelectric material having dimensional ratios selected so as to assure vibration in a thickness shear mode strongly coupled with a flexural mode. At least two energy trapping zones are provided extending over the entire width of the bar. The arrangement enables achievement of a high quality factor combined with extremely small dimensions. |
申请公布号 |
US4076987(A) |
申请公布日期 |
1978.02.28 |
申请号 |
US19760749559 |
申请日期 |
1976.12.10 |
申请人 |
SOCIETE SUISSE POUR L"INDUSTRIE HORLOGERE MANAGEMENT SERVICES S.A. |
发明人 |
ZUMSTEG, ALPHONSE E. |
分类号 |
H03H9/17;G04F5/06;H01L41/00;H03H9/56;(IPC1-7):H01L41/04 |
主分类号 |
H03H9/17 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|