| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LC resonant circuit for an oscillator with reduced fluctuation of frequency conversion gain, and an oscillator and information apparatus using the same. <P>SOLUTION: An LC resonant circuit of an oscillator comprises: 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. Frequency conversion gain of the oscillator is the sum of 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 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)2012,JPO&INPIT |
