| 摘要 |
[Problem] To increase the Q value of a variable capacitance device in a frequency band to be used. [Solution] This variable capacitance device has: (A) a first signal line which includes a plurality of first variable capacitance elements that are connected in series; (B) a second signal line which includes a plurality of second variable capacitance elements that are connected in series; (C) a first bias line for applying a first direct current voltage to each of the plurality of first variable capacitance elements and the plurality of second variable capacitance elements; and (D) a second bias line for applying a second direct current voltage to each of the plurality of first variable capacitance elements and the plurality of second variable capacitance elements. In addition, one portion of the first bias line and/or the second bias line is disposed so as to pass between two adjacent first variable capacitance elements among the plurality of first variable capacitance elements. |
