Title :
Low-phase-noise LC-VCO using high-Q 8-shaped inductor
Author :
Fahs, Bassem ; Gamand, P. ; Berland, Corinne
Author_Institution :
ST-Ericsson, Colombelles, France
Abstract :
An integrated LC-VCO using an 8-shaped inductor for reduced EM radiation is presented. A low phase noise is measured at 1 MHz offset ranging from 134 to 128 dBc/Hz for carrier frequencies from 2.9 to 3.47 GHz, respectively. The coil is implemented with a double aluminium metal layer and presents a measured quality factor Q 20 at 3 GHz. The circuit is realised in a 40 GHz-fT 0.25 m BiCMOS technology. Power consumption is about 13.5 mW from a 1.8 V regulated supply voltage.
Keywords :
BiCMOS integrated circuits; Q-factor; voltage-controlled oscillators; BiCMOS technology; double aluminium metal layer; frequency 2.9 GHz to 3.47 GHz; frequency 40 GHz; high-Q 8-shaped inductor; integrated LC-VCO; low-phase-noise LC-VCO; power 13.5 mW; quality factor; reduced EM radiation; voltage 1.8 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2323
