Title :
Low-Phase Noise Hartley Differential CMOS Voltage Controlled Oscillator
Author :
Lee, Shao-Hua ; Chuang, Yun-Hsueh ; Jang, Sheng-Lyang ; Chen, Chien-Cheng
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei
Abstract :
This letter presents a novel Hartley low phase noise differential CMOS voltage-controlled oscillator (VCO). The low noise CMOS VCO has been implemented with the TSMC 0.18-mum 1P6M CMOS technology and adopts full PMOS to achieve a better phase noise performance. The VCO operates from 4.02 to 4.5GHz with 11.3% tuning range. The measured phase noise at 1-MHz offset is about -119dBc/Hz at 4.02GHz and 122dBc/Hz at 4.5GHz. The power consumption of the VCO core is 6.75mW
Keywords :
CMOS integrated circuits; MMIC oscillators; phase noise; voltage-controlled oscillators; 0.18 micron; 4.02 to 4.5 GHz; 6.75 mW; CMOS differential VCO; Hartley voltage controlled oscillator; microwave oscillators; monolithic microwave integrated circuit; phase noise; CMOS technology; Capacitors; Circuit topology; Inductors; MOSFET circuits; Phase noise; Radio frequency; Radiofrequency integrated circuits; Varactors; Voltage-controlled oscillators; CMOS integrated circuits; Hartley; low phase noise; radio frequency integrated circuit (RFIC); voltage-controlled oscillators (VCOs);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.890344
