Title :
gm-Boosted VCO with Low Power Consumption and Large Tuning Range
Author :
Ussmuller, Thomas ; Seemann, Kay ; Weigel, Robert
Author_Institution :
Friedrich-Alexander Univ. of Erlangen-Nuremberg, Erlangen
Abstract :
A voltage controlled oscillator (VCO) in a rather new topology is presented. The architecture is based on the classical Colpitts oscillator in common-gate configuration. In order to achieve a higher effective transconductance the gate is not biased with a DC voltage. Instead the biasing voltage has a phase shift of 180deg to the signal at the LC-tank. The design goals have been a wide tuning range and a low power consumption with at the same time the least possible phase noise.
Keywords :
circuit tuning; low-power electronics; phase noise; radiofrequency oscillators; voltage-controlled oscillators; LC-tank; classical Colpitts oscillator; common-gate configuration; gm-boosted VCO; large tuning range; low power consumption; phase noise; transconductance; tuning range; voltage controlled oscillator; CMOS analog integrated circuits; Circuit topology; Energy consumption; Microwave oscillators; Phase noise; Ring oscillators; Transconductance; Tuning; Voltage; Voltage-controlled oscillators; CMOS analog integrated circuits; Microwave FET oscillators; Microwave integrated circuits; Microwave oscillators; Monolithic integrated circuits; Voltage controlled oscillators;
Conference_Titel :
Wireless Technologies, 2007 European Conference on
Conference_Location :
Munich
Print_ISBN :
978-2-87487-003-3
DOI :
10.1109/ECWT.2007.4404003
