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January 2006 [Components] White Paper: Low-Noise Amplifiers Drop Below 1-dB Noise-Figure Mark Sponsored by Richardson Electronics Low-noise amplifiers (LNAs) can be found in the front end of virtually all communications receiver designs, especially those where signal sensitivity is critical. The first-stage LNA in a receiver is a critical component since it essentially sets the limit for how low the system noise figure can reach. While LNA noise figures approaching as low as 1 dB have been available commercially, few devices ever reach noise... |
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