| 摘要 |
In a communication device, an applied voltage which is outputted by a voltage circuit (50) is changed, and each capacitance value (C1, C2) of a variable capacitance element (21) before and after the change of the applied voltage is measured with a capacitance measurement apparatus (2). A voltage correction value (alpha) for correcting an initial misalignment of the capacitance value of the variable capacitance element (21) using each capacitance value (C1, C2) before and after the change of the applied voltage of the variable capacitance element (21) and each applied voltage value (V1, V2) before and after the change, and a correction voltage to erase the initial misalignment of the capacitance value of the variable capacitance element (21), are computed, and the correction voltage is outputted from the voltage circuit (50). |
