analysis and design of wideband low noise amplifier with digital control

Clicks: 122
ID: 247760
2010
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Ranked #69 of 100 articles by views in molecular therapy : the journal of the american society of gene therapy

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Abstract
The design issues in designing low noise amplifier (LNA) for Software-Defined-Radio (SDR) are reviewed. An inductor-less wideband low noise amplifier aiming at low frequency band (0.2-2GHz) for Software-Defined-Radio is presented. Shunt-shunt LNA with active feedback is used as the first stage which is carefully optimized for low noise and wide band applications. A digitally controlled second stage is employed to provide an additional 12dB gain control. A novel method is proposed to bypass the first stage without degrading input matching. This LNA is fabricated in a standard 0.18 um CMOS technology. The measurement result shows the proposed LNA has a gain range of 6dB-18dB at high gain mode and -12dB-0dB at low gain mode, as well as a –3dB bandwidth of 2GHz. The noise figure (NF) is 3.5-4.5dB in the high gain setting mode. It consumes 20mW from a 1.8V supply.
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hu2010radioengineeringanalysis Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;B. Hu;X. Yu;L. He;W. Lim;K. Yeo
Journal molecular therapy : the journal of the american society of gene therapy
Year 2010
DOI
DOI not found
URL
www.radioeng.cz/fulltexts/2010/10_04_527_535.pdf
Keywords
electronics nuclear engineering digital gain controlelectrical engineering

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