Title :
A low power wideband 2.6GHz CMOS injection-locked ring oscillator prescaler
Author :
Dehghani, R. ; Atarodi, S.M.
Author_Institution :
Sharif Univ. of Technol., Tehran, Iran
Abstract :
A high speed and low power prescaler based on an injection-locked ring oscillator is presented. The proposed prescaler uses adaptive biasing to increase the locking range and to eliminate the sensitivity of the locking phenomena to temperature and process variation. The designed circuit can be used in a fractional-N frequency synthesizer. The prescaler operates properly in a temperature range of -20/spl deg/C to +100/spl deg/C and input frequency range from 2.2 GHz to 2.6 GHz in all process corners while its maximum power dissipation is 2 mW at a supply voltage of 1.5 V.
Keywords :
CMOS integrated circuits; UHF oscillators; circuit simulation; frequency dividers; frequency synthesizers; injection locked oscillators; integrated circuit design; integrated circuit modelling; low-power electronics; prescalers; -20 to 100 C; 1.5 V; 2 mW; 2.2 to 2.6 GHz; 2.6 GHz; fractional-N frequency synthesizers; high speed CMOS prescalers; injection-locked frequency dividers; locking range; low power wideband injection-locked ring oscillator prescalers; maximum power dissipation; prescaler adaptive biasing; prescaler temperature range/input frequency range; supply voltage; temperature/process variation locking phenomena sensitivity; Circuit noise; Energy consumption; Frequency conversion; Frequency synthesizers; RF signals; Ring oscillators; Temperature distribution; Temperature sensors; Voltage-controlled oscillators; Wideband;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1211055
