| 摘要 |
Disclosed herein is a push-push voltage controlled oscillator, including an LC resonance unit for determining a fundamental oscillation frequency; a first negative resistance generation means connected to the LC resonance unit and configured to generate negative resistance and deliver an output signal to a first common source terminal; a first impedance element for controlling an output signal of the first common source terminal; a second negative resistance generation means connected to the LC resonance unit and configured to generate negative resistance and deliver an output signal to a second common source terminal; and a second impedance element for controlling an output signal of the second common source terminal. The present invention obtains output signals having a frequency two times the fundamental resonance frequency of an LC resonator with differential signals having the same amplitude and opposite phases, so advantages occur in that high frequency differential outputs are obtained using a voltage controlled oscillator, and current consumption can be reduced because an additional circuit is not used. |
