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A 1.8-V 2.4/5.15-GHz dual-band LCVCO in 0.18-μm CMOS technology

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6 Author(s)
Lin Jia ; Dept. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore ; Jian Guo Ma ; Kiat Seng Yeo ; Xiao Peng Yu
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A dual band, fully integrated, low phase-noise and low-power LC voltage-controlled oscillator (VCO) operating at the 2.4-GHz industrial scientific and medical band and 5.15-GHz unlicensed national information infrastructure band has been demonstrated in an 0.18-μm CMOS process. At 1.8-V power supply voltage, the power dissipation is only 5.4mW for a 2.4-GHz band and 8mW for a 5.15-GHz band. The proposed VCO features phase-noise of -135dBc/Hz at 3-MHz offset frequency away from the carrier frequency of 2.74GHz and -126dBc/Hz at 3-MHz offset frequency away from 5.49GHz. The oscillator is tuned from 2.2 to 2.85GHz in the low band (2.4-GHz band) and from 4.4 to 5.7GHz in the high band (5.15-GHz band).

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:16 ,  Issue: 4 )

Date of Publication:

April 2006

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