Title :
A Quadrature CMOS VCO Using a Distributed MIM Poly-Phase Network
Author :
Yang, Ching-Yuan ; Chang, Chih-Hsiang ; Weng, Jun-Hong
Author_Institution :
Electr. Eng. Dept., Nat. Chung Hsing Univ., Taichung, Taiwan
Abstract :
In this letter, a 0.18 μm CMOS quadrature voltage-controlled oscillator (QVCO) using a simple distributed metal-insulator-metal (MIM) poly-phase network is presented. The MIM network is used to replace the conventional coupling transistors and to lower the power consumption and phase noise. The QVCO has a tuning range from 5.29 to 5.67 GHz and the power consumption is about 5.2 mW at a 0.6 V supply. At 1-MHz offset from a 5.48-GHz carrier, the measured phase noise is - 118.58 dBc/Hz.
Keywords :
CMOS analogue integrated circuits; MIM devices; circuit tuning; integrated circuit noise; phase noise; voltage-controlled oscillators; CMOS quadrature voltage-controlled oscillator; distributed MIM poly-phase network; distributed metal-insulator-metal; frequency 1 MHz; frequency 5.29 GHz to 5.67 GHz; phase noise; power consumption; quadrature CMOS VCO; size 0.18 mum; tuning range; voltage 0.6 V; CMOS integrated circuits; Couplings; Phase noise; Transistors; Voltage measurement; Voltage-controlled oscillators; Distributed poly-phase; low voltage; metal-insulator-metal (MIM); phase noise; quadrature voltage-controlled oscillation (VCO);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2010.2097585
