A Compact 2.4/5.2-GHz CMOS Dual-Band Low-Noise Amplifier
Resource
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 15, NO. 10, OCTOBER 2005
Journal
IEEE Microwave and Wireless Components Letters
Journal Volume
VOL. 15
Journal Issue
NO. 10
Pages
-
Date Issued
2005-10
Date
2005-10
Author(s)
DOI
246246/200611150121756
Abstract
This letter presents a fully integrated 2.4/5.2-GHz
dual-band low-noise amplifier (LNA) for WLAN applications. By
switching the input transconductance and the output capacitance,
the narrow-band gain and impedance matching are achieved at
the 2.4-GHz and the 5.2-GHz frequency bands. Using a standard
0.18- m CMOS process, a compact dual-band LNA with a chip
size comparable to a single-band one is realized in the proposed
topology for a minimum hardware cost. The fabricated circuit
exhibits gains of 10.1 dB and 10.9 dB, and noise figures of 2.9 dB
and 3.7 dB at the two frequency bands, respectively.
Subjects
Cascode amplifier
CMOS RF, dual-band
impedance matching
low-noise amplifier (LNA)
multimode
source degeneration
Publisher
Taipei:National Taiwan University Dept Elect Engn
Type
journal article
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