摘要
采用一种环型电路结构,设计了一个1.3GHz宽带线性压控振荡器。采用TSMC 0.18μm RF CMOS工艺,利用Cadence SpectreRF完成对电路的仿真。结果显示,在电源电压Vdd=1.8 V时,控制电压范围为1.0～1.18 V,频率的变化范围为800 MHz～2.1 GHz,相位噪声为-105 dBc/Hz@1 MHz。很好地解决了相位噪声与调谐范围之间的矛盾。
In order to solve the contradiction between phase noise and tuning range,a 1.3 GHz linear voltage controlled oscillator was designed based on the ring structure.The circuit was designed in TSMC 0.18 μm CMOS RF process,and simulated by the SpectreRF in Cadence under supply voltage of 1.8 V.The output frequency ranged from 800.0 MHz to 2.1 GHz.The phase noise was-105 dBc/Hz at an offset of 1 MHz.
出处
《电子器件》
CAS
2010年第5期572-574,共3页
Chinese Journal of Electron Devices
关键词
CMOS
压控振荡器
环型结构
相位噪声
CMOS
voltage controlled oscillator（vco）
ring structure
phase noise
