| 摘要 |
<p>The present invention relates to a voltage controlled tuning circuit for tuning a resonance frequency of an oscillator, comprising a voltage controlled variable capacitance means (11; 45), a first and a second inductor means (12, 13; 46, 47) connected in series with each other and parallel to the variable capacitance means, and a band switch means (14; 49) connected in parallel to at least one of the inductor means for band switching the resonance frequency. The voltage controlled tuning circuit further comprises an adjustment means (15; 50) for adjusting the resonance frequency. The adjustment means thereby allows a quick and very precise adjustment and fine tuning of the resonance frequency to the center frequency of the respective frequency band. <IMAGE></p> |
