A 77GHz CMOS VCO with 11.3GHz tuning range, 6dBm output power, and competitive phase noise in 65nm bulk CMOS

Author

Trivedi, Vishal P. ; To, Kun-Hin ; Huang, W. Margaret

Author_Institution

Freescale Semicond. Inc., Tempe, AZ, USA

fYear

2011

fDate

5-7 June 2011

Firstpage

1

Lastpage

4

Abstract

We demonstrate, using a foundry-based 65nm bulk technology, mmWave CMOS VCOs in the range of 38GHz and 77GHz with highest reported continuous tuning range (14%-25%), competitive phase noise (-88dBc/Hz at 1MHz offset at 77GHz), and high P_out (6dBm at 77GHz) needed to readily integrate with CMOS PA and to tolerate PVT variations. The DC power consumption of the 77GHz VCO is ~190mW and that of the 38GHz VCOs is ~60mW (~16mW without buffer) from 1V supply (VDD). Device and design optimizations responsible for the high performance are presented. The impact of temperature and VDD variation (e.g., ~2.6GHz shift in frequency and >;5.3dB variation in P_out at 77GHz) is reported for the first time.

Keywords

CMOS integrated circuits; millimetre wave oscillators; phase noise; power consumption; voltage-controlled oscillators; CMOS VCO; DC power consumption; bulk CMOS; competitive phase noise; frequency 38 GHz; frequency 77 GHz; size 65 nm; voltage 1 V; CMOS integrated circuits; CMOS technology; Phase noise; Temperature measurement; Tuning; Varactors; Voltage-controlled oscillators; 77GHz; CMOS; VCO; millimeter-wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2011 IEEE

Conference_Location

Baltimore, MD

ISSN

1529-2517

Print_ISBN

978-1-4244-8293-1

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2011.5940644

Filename

5940644