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

fYear

2007

fDate

9-12 Oct. 2007

Firstpage

1046

Lastpage

1049

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; g_m-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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-001-9

Type

conf

DOI

10.1109/EUMC.2007.4405376

Filename

4405376