A 4.9&amp;#x2013;6.9 GHz LC VCO with low-phase-noise

Shanliang Gan Shanliang Gan,Xing Zhang Xing Zhang,Yuan Wang Yuan Wang,Song Jia Song Jia,Jian Cao Jian Cao

doi:10.1109/edssc.2013.6628209

A 4.9&#x2013;6.9 GHz LC VCO with low-phase-noise

Shanliang Gan Shanliang Gan, Xing Zhang Xing Zhang + Show 3 more

https://doi.org/10.1109/edssc.2013.6628209

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Publication Date: Jun 1, 2013

Affiliation: Peking University, Institute of Microelectronics

#Voltage Controlled Oscillator #GHz LC Voltage Controlled Oscillator + Show 8 more

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Abstract

A wide-tuning-range and low-phase-noise LC voltage controlled oscillator (VCO) is presented in this paper. With the variable current source and source damping resistor, the proposed VCO exhibits a phase noise of -115dBc/Hz at 1MHz offset from 6 GHz carrier, and a power dissipation of 1.4mW. In addition, its tuning range is from 4.9 to 6.9 GHz with the MIM capacitor bank and differentially controlled varactors. The capacitor bank is used for wide tuning range and the differentially controlled varactors are useful for suppressing power supply noise.

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