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Phase noise reduction in CMOS LC oscillators using Tail noise shaping and G(m3) boosting

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Title Phase noise reduction in CMOS LC oscillators using Tail noise shaping and G(m3) boosting
 
Creator JAINWAL, K
MUKHERJEE, J
 
Subject quadrature vco
model
 
Description This paper presents a new technique for Low-Phase Noise CMOS Quadrature differential oscillator with better phase noise. The design uses tail noise shaping along with G(m3) boosting circuit and third harmonic tuned LC tank for improved phase noise performance. The proposed quadrature oscillator circuit shows a 4 dB phase noise improvement over standard fixed bias quadrature oscillator. Post Layout Simulation results in a 0.18-um CMOS fabrication process show that the phase noise of the proposed quadrature oscillator to be 114 dBc/Hz at 1-MHz frequency offsets respectively at a center frequency of 5-GHz. The improvement is higher than the sum of reductions provided by the individual techniques. The power consumed increases by a very small amount and thus the Figure of Merit (FOM) shows a 4 dB improvement.
 
Publisher IEEE
 
Date 2011-10-26T01:00:00Z
2011-12-15T09:12:15Z
2011-10-26T01:00:00Z
2011-12-15T09:12:15Z
2008
 
Type Proceedings Paper
 
Identifier PROCEEDINGS OF ICECE 2008, VOLS 1 AND 2,302-305
978-1-4244-2014-8
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15866
http://hdl.handle.net/100/2557
 
Source Asia Simulation Conference/7th International Conference on System Simulation and Scientific Computing,Beijing, PEOPLES R CHINA,OCT 10-12, 2008
 
Language English