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 :
BiCMOS analogue integrated circuits; circuit tuning; integrated circuit noise; low-power electronics; microwave integrated circuits; microwave oscillators; phase noise; voltage-controlled oscillators; BICMOS process; Colpitts oscillator; LC-tank; common-gate configuration; gm-boosted VCO topology; microwave oscillator; phase noise; power consumption; transconductance; voltage controlled oscillator tuning; 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 :
Microwave Conference, 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-001-9
DOI :
10.1109/EUMC.2007.4405376
