Title :
Low-power LC-VCO using integrated MEMS passives
Author :
Saraf, Vivek Kumar ; Ramachandran, Deepa ; Oz, Altug ; Fedder, Gary K. ; Mukherjee, Tamal
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
Low power RF operation is often limited by the poor quality factor of the passives available in silicon-based processes. This paper reports on an LC-tank VCO, incorporating micromachined inductors and capacitors, for low power operation, without sacrificing performance. Only 2.75 mW of power is needed to achieve -122 dB/Hz phase noise at 1 MHz from a 2.84 GHz carrier.
Keywords :
Q-factor; UHF integrated circuits; UHF oscillators; capacitors; inductors; low-power electronics; micromachining; micromechanical devices; phase noise; varactors; voltage-controlled oscillators; 2.75 mW; 2.84 GHz; integrated MEMS passives; low-power LC-tank VCO; micromachined capacitors; micromachined inductors; micromachining; phase noise; quality factor; varactor; Capacitors; Inductors; Micromachining; Micromechanical devices; Phase noise; Q factor; Radio frequency; Radiofrequency microelectromechanical systems; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2004. Digest of Papers. 2004 IEEE
Print_ISBN :
0-7803-8333-8
DOI :
10.1109/RFIC.2004.1320687
