A low power wide tuning range VCO with coupled LC tanks

Author

Shouxian Mou ; Kaixue Ma ; Kiat Seng Yeo ; Mahalingam, Nagarajan ; Thangarasu, Bharatha Kumar

Author_Institution

Circuits & Syst. Div., Nanyang Technol. Univ., Singapore, Singapore

fYear

2011

fDate

26-28 Sept. 2011

Firstpage

52

Lastpage

56

Abstract

A 12GHz VCO fabricated in a 0.18μm SiGe BiCMOS technology with only CMOS devices, is presented. To improve tuning range and phase noise, a technique using strongly magnetic coupled LC tanks with fixed and tunable capacitive elements is proposed. The VCO achieves wide tuning range of 4.3GHz (36%) with only 4.5mW power consumption. The proposed VCO including buffer stage occupies a chip area of 0.17mm², and can be easily integrated on-chip with other blocks.

Keywords

BiCMOS digital integrated circuits; Ge-Si alloys; low-power electronics; phase noise; voltage-controlled oscillators; BiCMOS technology; SiGe; capacitive elements; frequency 12 GHz; frequency 4.3 GHz; integrated on chip; low power wide tuning range VCO; magnetic coupled LC tanks; phase noise; power 4.5 mW; size 0.18 mum; CMOS integrated circuits; Frequency measurement; Phase noise; Tuning; Varactors; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

SOC Conference (SOCC), 2011 IEEE International

Conference_Location

Taipei

ISSN

2164-1676

Print_ISBN

978-1-4577-1616-4

Electronic_ISBN

2164-1676

Type

conf

DOI

10.1109/SOCC.2011.6085075

Filename

6085075