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This paper reviews CMOS LC Voltage Controlled Oscillators (VCO) for wireless multi-standard transceivers and wireless communications. The main parameters, such as IC technology, phase noise, carrier frequency, supply voltage, tuning range, power dissipation, figure of merit (FOMT and FOMTT) were reviewed in this paper. These parameters were taken of 20 articles published in 2012-2016 years. Of the reviewed articles it can be said that most VCOs was designed in 180 nm (55%) and 65 nm (25%) CMOS IC technology. FOMTT quality function has been proposed for extended VCO quality assessment. FOMTT quality function additionally evaluates VCO IC technology, and the power supply. [ABSTRACT FROM AUTHOR]

In this paper, two LC Voltage-Controlled Oscillators (LC-LCVCO1 and LC-VCO2) are designed using TSMC 65 nm LP/MS/ RF CMOS technology. Two arrays, one of which is a 6-bit capacitor array and the other -- an array of MOS varactors, provide a wide LC-VCO frequency tuning range. Post-layout simulation results unveiled that at 1.8 V supply voltage the tuning range of LC-VCO1 spans from 5.17 GHz to 6.76 GHz and for LC-VCO2 the range spans from 6.33 GHz to 8.08 GHz. The phase noise at 1 MHz offset frequency is about -123.1 dBc/Hz for LC-VCO1 and -121.6 dBc/Hz for LC-VCO2. The power dissipation at maximum carrier is 30.47 mW for LC-VCO1 and 30.5 mW for LC-VCO2. The layout area is 285x335 μm and 255x305 μm, respectively for LC-VCO1 and LC-VCO2. [ABSTRACT FROM AUTHOR]