NDLI: Reconfigurable RFICs for frequency-agile VCOs in Si-based technology for multi-standard applications

Content Provider	IEEE Xplore Digital Library
Author	Mukhopadhyay, R. Park, Y. Sen, P. Srirattana, N. Lee, J.S. Nuttinck, S. Joseph, A.J. Cressler, J.D. Laskar, J.
Copyright Year	2003
Description	Author affiliation: Georgia Electron. Design Center, Georgia Inst. of Technol., Atlanta, GA, USA (Mukhopadhyay, R.; Park, Y.; Sen, P.; Srirattana, N.; Lee, J.S.; Nuttinck, S.)
Abstract	This paper presents novel reconfigurable RFICs for intelligent radio applications. It includes a new fully tunable active inductor (TAI) along with frequency-agile VCOs. The ICs are implemented on both 0.18 /spl mu/m Si-CMOS and 0.18 /spl mu/m SiGe-BiCMOS technologies. The novelty of the TAI lies in the use of a tunable active feedback resistor that results in inductances tunable from 0.1 nH to 15 nH with Q < 50 in C-band. Very wideband reconfigurable VCOs have been implemented using the proposed active inductor, and also with a switched-spiral topology. The VCO tuning ranges are as high as 4 GHz in the C-band. Analysis of the results, taking into account the technologies as well as the circuit topologies, is also presented.
Starting Page	1489
Ending Page	1492
File Size	467069
Page Count	4
File Format	PDF
ISBN	0780383311
ISSN	0149645X
DOI	10.1109/MWSYM.2004.1338856
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiofrequency integrated circuits Frequency Tunable circuits and devices Active inductors Circuit topology Feedback Resistors Wideband Voltage-controlled oscillators Circuit optimization
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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