Open AccessCompact CMOS LiT VCO achieving 198.6 dBc/Hz FoM A
Author(s) -
Kim S.J.,
Seo D.I.,
Kim J.S.,
Song R.,
Kim B.S.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.4047
Subject(s) - dbc , voltage controlled oscillator , cmos , phase noise , electrical engineering , electronic engineering , materials science , optoelectronics , engineering , voltage
A compact CMOS linear transconductance (LiT) voltage‐controlled oscillator (VCO) in 65 nm CMOS process is presented. The proposed LiT technique is realised using NP core without a choke inductor to reduce die area and avoid dual resonance problem. The measured output frequency of the proposed VCO shows 11.18–11.98 GHz and phase noise is −112.62 dBc/Hz at 1 MHz offset frequency. DC power consumption of the VCO core and the buffer is 5.86 and 6 mW, respectively. It achieves a high figure of merit normalised to the area of 198.6 dBc/Hz.