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Low-temperature coefficient lithium tantalate resonator

阅读:19发布:2023-04-14

专利汇可以提供Low-temperature coefficient lithium tantalate resonator专利检索,专利查询,专利分析的服务。并且Length extensional mode and width-length flexure mode resonators fabricated from lithium tantalate piezoelectric single crystals cut to have orientations within the range of zyw (+25*) to zyw (+50*) exhibit zero temperature coefficients of frequency, thus permitting their use as resonators in wideband crystal filters and voltage controlled oscillators.,下面是Low-temperature coefficient lithium tantalate resonator专利的具体信息内容。

1. An electrical device including a piezoelectric single crystal resonator of length 1, said resonator having at least two opposite parallel faces of length 1, and at least two electrodes attached to said faces, characterized in that said crystal consists essentially of lithium tantalate having an orientation within the range zyw +25* to zyw +50*.
2. The device of claim 1 in which all of the crystal faces are rectangular.
3. The device of claim 1 in which said crystal resonates in the fundamental length extensional mode.
4. The device of claim 3 in which said crystal has an orientation within the range zyw +35* to zyw +50*.
5. The device of claim 3 in which the width w of the crystal is up to one-half the length 1 of the crystal.
6. The device of claim 1 in which said crystal resonates in an overtone of the length extensional mode.
7. The device of claim 1 in which said crystal resonates in the width-length flexure mode.
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