Title :
A 1.3-2.8 GHz Wide Range CMOS LC-VCO Using Variable Inductor
Author :
Ito, Yasaku ; Yoshihara, Yoshiaki ; Sugawara, Hirotaka ; Okada, Kenichi ; Masu, Kazuya
Author_Institution :
Precision & Intelligence Lab., Tokyo Inst. of Technol., Yokohama
Abstract :
This paper proposes a novel wide-range tunable CMOS voltage controlled oscillator (VCO). VCO uses an on-chip variable inductor and switched capacitors as variable elements. The VCO was fabricated using a standard 0.18mum CMOS process with five metal layers. The oscillation frequency can be tuned from 1.28 GHz to 2.75 GHz with tuning range of 72%. The proposed VCO operates with low phase noise, and it achieves high FOMT -205.9 dBc/Hz
Keywords :
CMOS analogue integrated circuits; UHF oscillators; inductors; switched capacitor filters; variable-frequency oscillators; voltage-controlled oscillators; 0.18 micron; 1.3 to 2.8 GHz; CMOS LC-VCO; switched capacitors; tunable CMOS; variable inductor; voltage controlled oscillator; Inductors;
Conference_Titel :
Asian Solid-State Circuits Conference, 2005
Conference_Location :
Hsinchu
Print_ISBN :
0-7803-9163-2
Electronic_ISBN :
0-7803-9163-2
DOI :
10.1109/ASSCC.2005.251716
