TITLE

Noise-Cancelling CMOS Active Inductor and Its Application in RF Band-Pass Filter Design

AUTHOR(S)
Krishnamurthy, Santosh Vema; El-Sankary, Kamal; El-Masry, Ezz
PUB. DATE
January 2010
SOURCE
International Journal of Microwave Science & Technology;2010, Vol. 2010, Special section p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A CMOS active inductor with thermal noise cancelling is proposed. The noise of the transistor in the feed-forward stage of the proposed architecture is cancelled by using a feedback stage with a degeneration resistor to reduce the noise contribution to the input. Simulation results using 90 nmCMOS process show that noise reduction by 80%has been achieved. The maximum resonant frequency and the quality factor obtained are 3.8GHz and 405, respectively. An RF band-pass filter has been designed based on the proposed noise cancelling active inductor. Tuned at 3.46GHz, the filter features total power consumption of 1.4mW, low noise figure of 5 dB, and IIP3 of -10.29 dBm.
ACCESSION #
63582505

 

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