Title :
Design of low-phase-noise CMOS transformer-based gate-coupled quadrature VCO
Author :
Yi Shen ; Tsang, K.F. ; Wah Ching Lee ; Faan Hei Hung ; Triantis, Iasonas F. ; Kai Xuan
Author_Institution :
Sch. of Eng. & Math. Sci., City Univ. London, London, UK
Abstract :
A low-phase-noise transformer-based gate-coupled quadrature voltage-controlled oscillator (TGC-QVCO) using 0.13 μm CMOS technology is presented. The TGC-QVCO consumes 7 mW at 1 V power supply with 18% frequency tuning. The measured phase noise at 1 MHz offset varies from about -122 to -119 dBc/Hz for frequency tuning from 1.34 to 1.6 GHz. The achieved figure of merit (FoM) is 179 dB and the chip area is 800 × 900 μm2.
Keywords :
CMOS integrated circuits; UHF oscillators; high-frequency transformers; phase noise; voltage-controlled oscillators; CMOS; TGC-QVCO; chip area; figure of merit; frequency 1 MHz; frequency 1.34 GHz to 1.6 GHz; frequency tuning; low-phase-noise; phase noise; power 7 mW; size 0.13 mum; transformer-based gate-coupled quadrature voltage-controlled oscillator; voltage 1 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0093
