A 4.9–6.9 GHz LC VCO with low-phase-noise

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

Electron Devices and Solid-State Circuits（2013）

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摘要

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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关键词

field effect mmic,varactors,cmos integrated circuits,frequency 1 mhz,power dissipation,voltage-controlled oscillators,voltage controlled oscillator (vco),differentially controlled varactors,variable current source,mim devices,low phase noise,source damping resistor,frequency 4.9 ghz to 6.9 ghz,power supply noise suppression,low phase noise lc vco,integrated circuit noise,wide tuning range lc vco,differential tuning,phase noise,wide tuning range,mim capacitor bank,tuning range,voltage controlled oscillator,mmic oscillators,damping,resistors,tuning,wireless communication

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