Title :
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
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;
Conference_Titel :
Radio-Frequency Integration Technology (RFIT), 2012 IEEE International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2303-1
DOI :
10.1109/RFIT.2012.6401657
