A Body-biased Wide-band VCO

摘要

In this paper, a 3.24GHz～4.56GHz wide-band voltage-controlled oscillator (VCO) fabricated in a 0.18μm 1P6M CMOS process is presented. This VCO is designed with a CMOS complementary -Gm oscillator topology, features two accumulation mode MOS varactors, and body-biased pMOSs. With 1.8 V power supply, when center frequency is 3.547GHz, the phase noise is -119.2dBc/Hz at 1MHz offset. The oscillation frequency can be tuned from 3.24GHz to 4.46GHz. The best Figure of Merit (FoM) is -181.18dB, the maximum power consumption is 16.2mW.