Paper Info
Title
Wideband ring VCO for cognitive radio five-port receiver
Abstract
This paper presents an wideband ring VCO for cognitive radio five-port based receivers. Also presents testbenches to demonstrate the improvement of five-port architecture in homodyne receivers. A three-stage differential topology using transmission gates was adopted to implement the VCO in order to maintain wide and linear tuning range and a low phase-noise. Monte-carlo analysis were performed for evaluating the phase-shift response, which should be 120$^o$ between stages. Those analysis will be used to develop a behavioral model of the VCO with focus on five-port receiver simulations allowing time-saving. It was observed a fairly linear correlation between control voltage and oscillation frequency in the range between 200 MHz and 1800 MHz. The VCO was designed for IBM 130nm CMOS technology.
Year
DOI
Venue
2010
10.1145/1854153.1854160
SBCCI
Keywords
DocType
Citations 
phase shift,monte carlo analysis,cognitive radio,oscillations,software defined radio,phase noise
Conference
0
PageRank 
References 
Authors
0.34
3
2
Name
Order
Citations
PageRank
Francisco de Assis Brito Filho100.34
Fernando Rangel de Sousa24312.99