Title :
Analysis and design of 20 GHz VCOs using cross-coupled differential pair and balanced Colpitts topologies in SiGe:C BiCMOS technology
Author :
Verdier, Jacques ; Pérez, José Cruz Núñez ; Gontrand, Christian
Author_Institution :
Inst. des Nanotechnol. de Lyon, Villeurbanne
Abstract :
The design and analysis of fully integrated voltage controlled oscillators (VCO) for 20 GHz low cost and low power communication system is presented in this paper. Two differential topologies have been studied: balanced Colpitts VCO and LC-VCO using a cross-coupled differential pair. We have focussed on oscillation frequency, tuning range, phase noise, and output power optimization and buffer stage specifications. SiGe:C hetero-junction bipolar transistors of fT=55 GHz have been used and produced with a monolithic BiCMOS technology.
Keywords :
heterojunction bipolar transistors; voltage-controlled oscillators; balanced Colpitts VCO; balanced Colpitts topology; cross-coupled differential pair; frequency 20 GHz; frequency 55 GHz; heterojunction bipolar transistor; monolithic BiCMOS technology; oscillation frequency; voltage controlled oscillator; BiCMOS integrated circuits; Bipolar transistors; Frequency; Low-frequency noise; Phase noise; Power generation; Topology; Tuning; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Design and Technology of Integrated Systems in Nanoscale Era, 2008. DTIS 2008. 3rd International Conference on
Conference_Location :
Tozeur
Print_ISBN :
978-1-4244-1576-2
Electronic_ISBN :
978-1-4244-1577-9
DOI :
10.1109/DTIS.2008.4540269
