NDLI: A 1.6GHz Downconverter Mixer in 0.25μm CMOS

Content Provider	IEEE Xplore Digital Library
Author	Antunes, F.J. Pimenta, T.C. Moreno, R.L.
Copyright Year	2006
Description	Author affiliation: Univ. Fed. de Itajuba (Antunes, F.J.; Pimenta, T.C.; Moreno, R.L.)
Abstract	This work shows the implementation of a CMOS double balanced mixer based in the Gilbert cell capable of providing high conversion gain and high linearity. The mixer includes a common mode feedback circuit to keep a fixed DC level at the output and to maintain the transistors in the saturation, since the triode operation reduces the conversion gain. It uses inductive source degeneration in the transconductance stage in order to provide impedance matching and to improve the linearity of the circuit. It also incorporates an active balun at the output to convert the differential, or balanced, signal to a single ended termination. The mixer was designed to work with an RF signal of 1.8GHz, an LO of 1.6GHz, thus producing an IF of 200MHz. The circuit presents a conversion gain of 22.5dB and an IIP3 of +2dBm. The single sided band noise figure is 10.9dB, input signal loss of just -35.5dB
Starting Page	1663
Ending Page	1666
File Size	479246
Page Count	4
File Format	PDF
ISBN	1424403871
DOI	10.1109/APCCAS.2006.342085
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-04
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance matching Radio frequency Linearity Feedback circuits Noise figure Transconductance Signal design Costs Energy consumption Transceivers RF Mixer CMOS
Content Type	Text
Resource Type	Article

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