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A 5 GHz 0.95 dB NF Highly Linear Cascode Floating-Body LNA in 180 nm Floating-Body LNA in 180 nm

From Skyworks Solutions, Inc.

A 5 GHz CMOS LNA featuring a record 0.95 dB
noise-figure is reported. Using an inductively-degenerated cascode
topology combined with floating-body transistors and high-Q
passives on an SOI substrate, record noise figure and superior linearity
performance at 5 GHz are obtained. The low-noise amplifier
(LNA) achieves up to 11 dB of gain while consuming 12 mW dc
power, and is capable of supporting 802.11a WLAN applications.
The impact of SOI body-contact on the LNA RF performance is
described and linked to improved intermodulation performance.

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