TY - JOUR
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)
UR - http://www.scopus.com/inward/record.url?scp=84862822537&partnerID=8YFLogxK
U2 - 10.1109/LMWC.2012.2189100
DO - 10.1109/LMWC.2012.2189100
M3 - Article
AN - SCOPUS:84862822537
SN - 1531-1309
VL - 22
SP - 206
EP - 208
JO - IEEE Microwave and Wireless Components Letters
JF - IEEE Microwave and Wireless Components Letters
IS - 4
M1 - 6171883
ER -