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A Study and Design of High Performance Voltage-Controlled Oscillators in 65nm CMOS Technology
Linköping University, Department of Electrical Engineering, Electronic Devices. Linköping University, The Institute of Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In recent years, oscillators are considered as inevitable blocks in many electronic systems. They are commonly used in digital circuits to provide clocking and in analog/RF circuits of communication transceivers to support frequency conversion. Nowadays, CMOS technology is the most applicable solution for VLSI and especially for modern integrated circuits used in wireless communications. The main purpose of this project is to design a high performance voltage-controlled oscillator (LC VCO) using 65nm CMOS technology. To meet the state-of-the-art requirements, several circuit solutions have been explored and the design work ended-up with a Quadrature VCO. The circuit operates at center frequency of 2.4 GHz. The phase noise of QVCO obtained by simulation is -140 dBc/Hz at 1MHz offset frequency which is 6 dB less compared to conventional LC VCOs. The power consumption is 3.6mW and the tuning voltage can be swept from 0.2 V to 1.2 V resulting in 2.25 GHz - 2.55 GHz frequency range.

Place, publisher, year, edition, pages
2012. , 74 p.
Keyword [en]
QVCO, Power Consumption, Phase Noise, Tuning Voltage, Communication Transceivers
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-87278ISRN: LiTH-ISY-EX--12/4646--SEOAI: diva2:588341
Subject / course
Electronic Devices
2012-12-17, 14:00 (English)
Available from: 2013-01-16 Created: 2013-01-15 Last updated: 2013-01-23Bibliographically approved

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Afghari, Kamran
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