Transformer based multiple coupled LC tanks for on-chip VCO design and applications

Author

Kaixue Ma ; Qiong Zou ; Shouxian Mou ; Mahalingam, Nagarajan ; Kiat Seng Yeo

Author_Institution

EEE Sch., Nanyang Technol. Univ., Singapore, Singapore

fYear

2012

fDate

21-23 Nov. 2012

Firstpage

192

Lastpage

194

Abstract

A transformer based multiple coupled LC tanks model for on-chip VCO design is introduced. The merits of adoption multiple coupled LC tanks can be Q factor enhancement for the equivalent LC tank of VCO, low power consumption, better amplitude swing and broad tuning range can be obtained. As an illustration case two low power Ku band VCOs using dual LC-tanks with/without feedback designed using a 0.18 μm BiCMOS process for low phase noise or wide tuning range are demonstrated.

Keywords

BiCMOS integrated circuits; Q-factor; low-power electronics; phase noise; voltage-controlled oscillators; BiCMOS process; Q factor enhancement; amplitude swing; broad tuning range; dual LC-tank; equivalent LC tank; low phase noise; low power consumption; onchip VCO design; transformer based multiple coupled LC tanks; wide tuning range; CMOS integrated circuits; Metals; Phase noise; Q factor; Tuning; Varactors; Voltage-controlled oscillators; Dual LC-Tanks; Low Phase Noise; Low Power; Multiple Coupled LC Tanks; Transformer; Voltage Controlled Oscillator;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio-Frequency Integration Technology (RFIT), 2012 IEEE International Symposium on

Conference_Location

Singapore

Print_ISBN

978-1-4673-2303-1

Type

conf

DOI

10.1109/RFIT.2012.6401657

Filename

6401657