| 摘要 |
According to one embodiment, a variable-capacitor device includes a first MEMS variable-capacitor element, and a second MEMS variable-capacitor element including one end series-connected to one end of the first MEMS variable-capacitor element. In a down-state, a first capacitance value of the first MEMS variable-capacitor element differs from a second capacitance value of the second MEMS variable-capacitor element.
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