| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an LC resonant circuit for an oscillator with reduced fluctuation of a frequency conversion gain, and an oscillator and information equipment using the same. <P>SOLUTION: The LC resonant circuit of the oscillator includes a parallel circuit of an inductor L1, a first fine adjustable capacitor and a first capacitor bank, and a series capacitor of a second fine adjustable capacitor and a second capacitor bank. A frequency conversion gain of the oscillator is the sum of a frequency conversion gain of the oscillator based upon the first fine adjustable capacitor which decreases according to increase of a capacitance value of the first capacitor bank, and a frequency conversion gain based upon the second fine adjustable capacitor which increases according to increase of a capacitance value of the second capacitor bank. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
