Title :
Ultra-wideband CMOS voltage-controlled oscillator with reconfigurable tunable inductors
Author :
Kim, Jonghoon J. ; Lee, Ko-Hsin ; Choi, Jang-Young ; Park, Yu-Seop ; Lim, Khan ; Lee, Chia-Han
Author_Institution :
Georgia Electron. Design Center, Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
An ultra-wideband voltage-controlled oscillator (VCO) is presented. The proposed VCO adopts a series/parallel reconfigurable structure of inductor arrays to double the tuning range of their equivalent inductance. An ultra-wide VCO frequency range from 4.2 to 18.7 GHz was measured, achieving 25 improvement of frequency tuning characteristic and 40 reduction effect in die area.
Keywords :
CMOS integrated circuits; MMIC oscillators; field effect MMIC; inductors; ultra wideband technology; voltage-controlled oscillators; frequency 4.2 GHz to 18.7 GHz; frequency tuning; inductor arrays; reconfigurable tunable inductors; tuning range; ultra-wideband CMOS voltage-controlled oscillator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.7582
