| 摘要 |
A voltage-controlled oscillator circuit comprises an output terminal for providing an oscillatory output signal thereat, a first inductor, a varactor, and a negative-resistance element. The varactor's capacitance is a function of a tuning potential applied at a first terminal of the varactor. A bias branch is present for coupling a second terminal of the varactor to a bias potential. The bias branch comprises a second inductor or a transmission line. The bias branch may comprise a transmission line the length of which is one quarter wavelength associated with the resonance frequency of the voltage-controlled oscillator circuit. A radar system including a VCO circuit is further disclosed. |
