Title :
Switched resonators using adjustable inductors in 2.4/5 GHz dual-band LC VCO
Author :
Kao, H.L. ; Yang, D.Y. ; Kao, C.H. ; Chang, Y.C. ; Lin, B.S.
Author_Institution :
Chang Gung Univ., Taoyuan
Abstract :
A dual-band, low-phase-noise, low-power and small-sized voltage- controlled oscillator (VCO) with an adjustable inductor and switched resonator is described. The dual-band VCO operates near 2.4 and 5 GHz with a phase noise of - 120 and - 121 dBc/Hz at a 1 MHz offset and a tuning range of 250 MHz and 1.2 GHz, respectively. The power consumption is 1.5/1.8 mW for 2.4/5 GHz operations. The total size of the VCO is only 1.06 mm , which is achieved by using one inductor, which is connected to a switch to give good dual-band operation and performance.
Keywords :
inductors; low-power electronics; phase noise; power consumption; resonators; voltage-controlled oscillators; adjustable inductors; dual-band LC VCO; frequency 2.4 GHz; frequency 5 GHz; low-phase-noise VCO; low-power voltage-controlled oscillator; power consumption; switched resonators; tuning range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20083406
