A 15 GHz, -182 dBc/Hz/mW FOM, rotary traveling wave VCO in 90 nm CMOS

Changchun Zhang; Zhigong Wang; Yan Zhao; Sung Min Park

doi:10.1109/LMWC.2012.2189100

A 15 GHz, -182 dBc/Hz/mW FOM, rotary traveling wave VCO in 90 nm CMOS

Changchun Zhang, Zhigong Wang, Yan Zhao, Sung Min Park

Electronic and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

This letter presents a phase-noise-centric design methodology of a rotary traveling wave voltage controlled oscillator (RTW VCO). Based upon this methodology, a 15 GHz multiphase RTW VCO is realized in a standard 90 nm CMOS process. Particularly, shielded coplanar striplines are exploited to provide better shielding protection and higher characteristic impedance (Z _O) with comparable Q-factor than conventional coupled transmission lines. Measured results of the proposed RTW VCO demonstrates the frequency tuning range of 2 GHz, the output power level of - 11.3 dBm, the phase noise of -109.6 dBc/Hz at 1 MHz offset, the clock RMS jitter of 2 p ^s _RMS, and the power dissipation of 12 mW from a single 1.2-V supply. The chip core occupies the area of 0.2 mm ².

Original language	English
Article number	6171883
Pages (from-to)	206-208
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	22
Issue number	4
DOIs	https://doi.org/10.1109/LMWC.2012.2189100
State	Published - Apr 2012

Bibliographical note

Funding Information:
Manuscript received September 06, 2011; revised December 18, 2011; accepted February 03, 2012. Date of publication March 19, 2012; date of current version April 11, 2012. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (No. 2012.0000699).

Keywords

CMOS
phase noise
rotary traveling wave (RTW)
shielded coplanar stripline
voltage-controlled oscillator (VCO)

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10.1109/LMWC.2012.2189100

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title = "A 15 GHz, -182 dBc/Hz/mW FOM, rotary traveling wave VCO in 90 nm CMOS",

abstract = "This letter presents a phase-noise-centric design methodology of a rotary traveling wave voltage controlled oscillator (RTW VCO). Based upon this methodology, a 15 GHz multiphase RTW VCO is realized in a standard 90 nm CMOS process. Particularly, shielded coplanar striplines are exploited to provide better shielding protection and higher characteristic impedance (Z O) with comparable Q-factor than conventional coupled transmission lines. Measured results of the proposed RTW VCO demonstrates the frequency tuning range of 2 GHz, the output power level of - 11.3 dBm, the phase noise of -109.6 dBc/Hz at 1 MHz offset, the clock RMS jitter of 2 p s RMS, and the power dissipation of 12 mW from a single 1.2-V supply. The chip core occupies the area of 0.2 mm 2.",

keywords = "CMOS, phase noise, rotary traveling wave (RTW), shielded coplanar stripline, voltage-controlled oscillator (VCO)",

author = "Changchun Zhang and Zhigong Wang and Yan Zhao and Park, {Sung Min}",

note = "Funding Information: Manuscript received September 06, 2011; revised December 18, 2011; accepted February 03, 2012. Date of publication March 19, 2012; date of current version April 11, 2012. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (No. 2012.0000699).",

year = "2012",

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doi = "10.1109/LMWC.2012.2189100",

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T1 - A 15 GHz, -182 dBc/Hz/mW FOM, rotary traveling wave VCO in 90 nm CMOS

AU - Zhang, Changchun

AU - Wang, Zhigong

AU - Zhao, Yan

AU - Park, Sung Min

N1 - Funding Information: Manuscript received September 06, 2011; revised December 18, 2011; accepted February 03, 2012. Date of publication March 19, 2012; date of current version April 11, 2012. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (No. 2012.0000699).

PY - 2012/4

Y1 - 2012/4

N2 - This letter presents a phase-noise-centric design methodology of a rotary traveling wave voltage controlled oscillator (RTW VCO). Based upon this methodology, a 15 GHz multiphase RTW VCO is realized in a standard 90 nm CMOS process. Particularly, shielded coplanar striplines are exploited to provide better shielding protection and higher characteristic impedance (Z O) with comparable Q-factor than conventional coupled transmission lines. Measured results of the proposed RTW VCO demonstrates the frequency tuning range of 2 GHz, the output power level of - 11.3 dBm, the phase noise of -109.6 dBc/Hz at 1 MHz offset, the clock RMS jitter of 2 p s RMS, and the power dissipation of 12 mW from a single 1.2-V supply. The chip core occupies the area of 0.2 mm 2.

AB - This letter presents a phase-noise-centric design methodology of a rotary traveling wave voltage controlled oscillator (RTW VCO). Based upon this methodology, a 15 GHz multiphase RTW VCO is realized in a standard 90 nm CMOS process. Particularly, shielded coplanar striplines are exploited to provide better shielding protection and higher characteristic impedance (Z O) with comparable Q-factor than conventional coupled transmission lines. Measured results of the proposed RTW VCO demonstrates the frequency tuning range of 2 GHz, the output power level of - 11.3 dBm, the phase noise of -109.6 dBc/Hz at 1 MHz offset, the clock RMS jitter of 2 p s RMS, and the power dissipation of 12 mW from a single 1.2-V supply. The chip core occupies the area of 0.2 mm 2.

KW - CMOS

KW - phase noise

KW - rotary traveling wave (RTW)

KW - shielded coplanar stripline

KW - voltage-controlled oscillator (VCO)

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M1 - 6171883

ER -

A 15 GHz, -182 dBc/Hz/mW FOM, rotary traveling wave VCO in 90 nm CMOS

Abstract

Bibliographical note

Keywords

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