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IEICE TRANSACTIONS on Electronics

A Sub 1 V 2.4 GHz CMOS Variable-Gain Low Noise Amplifier

Chih-Lung HSIAO, Ro-Min WENG, Kun-Yi LIN, Hung-Che WEI

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Summary :

A low supply voltage CMOS variable-gain low noise amplifier (LNA) is presented in this paper. A folded cascode structure is used to reduce the supply voltage to only 1 V. The conversion gain of the LNA can be controlled by the bias voltage of the connon-gate transistor. When the input signal is weak, the circuit works at high-gain mode to improve the sensitivity. Otherwise, when the input signal is strong, the circuit works at low-gain mode to increase the linearity.

Publication
IEICE TRANSACTIONS on Electronics Vol.E87-C No.6 pp.1003-1004
Publication Date
2004/06/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category

Authors

Keyword

low voltage,  LNA,  CMOS,  RFIC,  VGA