Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:P2
Session:
Number:P2-109
A Reconfigurable CMOS Low Noise Amplifier for Wireless LAN Applications
Eun-Pyo Hong, Dae-Joon Kim, Hyung-Joun Yoo,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
This paper presents the designed and implemented CMOS Low Noise Amplifier (LNA) for multiband operation in TSMC 0.18 μm process. To operate in multibands and multistandards, switched inductor and switched capacitor array are used in input and output signal paths. Due to filtering characteristic of input stage, the LNA can suppress spurious signal effectively. The designed reconfigurable LNA is targeted to IEEE 802.11n application which operates in dual band: 2.4~2.485 GHz and 5.15~ 5.825 GHz. At each frequency mode; 2.4 GHz, 5.25 GHz and 5.75 GHz, gains are more than 12 dB while NFs are kept less than 2.2 dB. The LNA can be optimized the performance to each operation frequency by using LC resonant circuits and capacitor array networks.