发明名称
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 DE2713672(C2) 申请公布日期 1985.06.05
申请号 DE19772713672 申请日期 1977.03.28
申请人 DRYAN-FORDAHL TECHNOLOGIES S.A., BIENNE, CH 发明人 ZUMSTEG, ALPHONSE E., SOLOTHURN, CH
分类号 H03H9/17;G04F5/06;H01L41/00;H03H9/56;(IPC1-7):H03H9/56;G04C5/00 主分类号 H03H9/17
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