Title :
A loss control feedback loop for VCO stable amplitude tuning of RF integrated filters
Author :
Linares-Barranco, Bernabé ; Serrano-Gotarredona, Teresa
Author_Institution :
Instituto de Microelectron. de Sevilla, Centro Nacional de Microelectron., Seville, Spain
fDate :
6/24/1905 12:00:00 AM
Abstract :
Recently Li and Tsividis (IEEE Trans. Circuits and Sys. II, vol. 47, no. 3, pp. 169-175, 2000) introduced a novel loss control feedback loop for VCO indirect tuning of RF integrated filters, because conventional loss-control loops were not able to render stable amplitude control for high frequency applications. In this paper, we show a slight modification to the classical control loop, rendering stable control. Results are validated through device level simulations
Keywords :
UHF filters; UHF integrated circuits; automatic gain control; circuit simulation; circuit stability; circuit tuning; feedback oscillators; integrated circuit design; integrated circuit modelling; voltage-controlled oscillators; AGC; RF integrated filters; UHF filters; VCO indirect tuning; VCO stable amplitude tuning; automatic gain control loop; device level simulations; high frequency applications; loss control feedback loop; stable amplitude control; voltage controlled oscillators; Automatic control; Delay; Electronic mail; Feedback loop; Filters; Integral equations; Radio frequency; Tuning; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Conference_Location :
Phoenix-Scottsdale, AZ
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1009892
