Title
A 2.4 GHz CMOS quadrature LC-oscillator/mixer
Abstract
Coupled LC oscillators are very often used to achieve quadrature outputs. In this paper we present an expression for the oscillation frequency of a coupled oscillator considering the effect of mismatches. Then we calculate the new value of the resonator effective Q due to varying of the oscillation frequency, and we evaluate the correspondent phase noise degradation. We show that this degradation is critical for high quality factor inductors. We evaluate the capability of a coupled LC oscillator to perform the mixing function by inserting a signal in the oscillator feedback structure. The theoretical results are confirmed by simulation.
Year
DOI
Venue
2004
10.1109/ISCAS.2004.1328157
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium
Keywords
Field
DocType
CMOS integrated circuits,mixers (circuits),oscillators,phase noise,resonators,2.4 GHz,CMOS,coupled LC oscillators,mismatches effects,mixing function,oscillation frequency,oscillator feedback,phase noise,quadrature LC-mixer,quadrature LC-oscillator,quadrature outputs,quality factor inductors
Quadrature modulation,Colpitts oscillator,Electronic oscillator,Q factor,Computer science,Control theory,Phase noise,Vackář oscillator,Electronic engineering,Voltage-controlled oscillator,Local oscillator
Conference
Volume
ISBN
Citations 
1
0-7803-8251-X
5
PageRank 
References 
Authors
1.25
2
4
Name
Order
Citations
PageRank
Luís Bica Oliveira151.25
Jorge R. Fernandes251.25
Filanovsky, I.M.34011.56
Chris J. M. Verhoeven47219.18