| 摘要 |
A method and an apparatus for calibrating the center frequency of a power amplifier. The apparatus includes a capacitor unit and an inductor unit. The capacitor unit and the inductor unit are connected in parallel so as to control the center frequency of the power amplifier. The method includes: (a) controlling the capacitor unit to correspond with a plurality of test capacitance values; (b) inputting an input signal with the center frequency to the power amplifier, and recording a plurality of test output powers generated according to the test capacitance values and the input signal; and (c) selecting one predetermined power among the test output powers, and utilizing a test capacitance value corresponding to the predetermined power to set a capacitance value of the capacitor unit.
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