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piezoelectric resonator with eingefangener energy in dickenausdehnungsmodus
piezoelectric resonator with eingefangener energy in dickenausdehnungsmodus
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机译：厚度扩展模式下具有能量俘获的压电谐振器
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摘要
The invention provides an energy-trapped thickness extensional vibration mode piezoelectric resonator that utilizes a harmonic of a thickness extensional vibration mode and can be fabricated in smaller size. The resonator can effectively suppress generation of unwanted spurious vibrations. An energy-trapped thickness extensional vibration mode piezoelectric resonator 1 comprises a rectangular piezoelectric strip 2, first and second excitation electrodes 3, 4 formed on both faces of the piezoelectric strip 2, and an internal electrode disposed inside the piezoelectric strip. The first and second excitation electrodes 3 and 4 are located on opposite sides of the piezoelectric strip 2. The internal electrode is located opposite to the first and second excitation electrodes 3, 4. The first and second excitation electrodes overlap each other over a length of l such that l /d is not greater than 6, where d = t/n.
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机译：本发明提供了一种能量捕获的厚度延伸振动模式压电谐振器，该压电谐振器利用了厚度延伸振动模式的谐波并且可以以较小的尺寸制造。谐振器可以有效地抑制不希望的寄生振动的产生。能量俘获的厚度延伸振动模式压电谐振器1包括矩形压电条2，形成在压电条2的两个面上的第一和第二激励电极3、4以及设置在压电条内部的内部电极。第一和第二激励电极3和4位于压电条2的相对侧上。内部电极与第一和第二激励电极3、4相对。第一和第二激励电极在长度上彼此重叠。 l使得l / d不大于6，其中d = t / n。
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