| 摘要 |
Piezoelectric resonator structures and electric filters including the same are provided to improve insertion loss characteristics of the electric filter. According to an electric resonator, a first electrode(203) comprises at least two bent edges and at least one straight edge. A second electrode(204) comprises at least two bent edges and at least one straight edge. A piezoelectric material layer is arranged between the first electrode and the second electrode. A TE(Thickness-Expansion) mode is transferred along the thickness of the layer.
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