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Invention Publication
CN107493088A 声波器件 有权

声波器件
Abstract:
声波器件。一种声波器件，该声波器件包括：压电薄膜谐振器，该压电薄膜谐振器连接在第一节点与第二节点之间；以及谐振电路，该谐振电路与所述压电薄膜谐振器在所述第一节点与所述第二节点之间并联连接，并且具有满足条件2×fa×0.92≤f0的谐振频率f0，其中，fa表示该压电薄膜谐振器的反谐振频率。
Abstract(English):

An acoustic wave device includes: a piezoelectric thin film resonator that is connected between a first node and a second node; and a resonant circuit that is connected in parallel with the piezoelectric thin film resonator between the first node and the second node, and has a resonant frequency f0 that meets a condition of 2*fa*0.92<=f0, where fa represents an antiresonant frequency of the piezoelectric thin film resonator.

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