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Design and implementation of a dual-band concurrent fully-integrated LNA for WLAN IEEE 802.11a/b/g applications

✍ Scribed by Cristian Pavão Moreira; Eric Kerhervé; Pierre Jarry; Didier Belot

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 512 KB
Volume: 19
Category: Article
ISSN: 1096-4290
DOI: 10.1002/mmce.20307

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✦ Synopsis

This article presents a dual-band concurrent fully-integrated low-noise amplifier (LNA) targeted to WLAN IEEE 802.11a/b/g standards. The use of a concurrent topology enables saving die area and power consumption compared with the parallel solution that employs two separated LNAs. An original design methodology that helps in the selection of input/output matching network element values is also presented. The LNA die area is 1.0 3 0.9 mm 2 and it consumes 9 mW (5 mA at 1.8 V). V

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This article thoroughly analyzes a concurrent dual-band low-noise amplifier (LNA) and carefully examines the effects of both active and passive elements on the performance of the dual-band LNA. As an example of the analysis, a fully integrated dual-band LNA is designed in a standard 0.18-m 6M1P CMOS