Low Noise Amplifiers Graph

Measured noise temperature at 20K operating temperature of several packaged low noise amplifiers, including two different MMIC layouts (MMIC-A and MMIC-B) and six hybrid "chip-and-wire" amplifiers of identical design. The MMIC amplifiers have roughly 30dB gain across the band. The hybrid amplifiers have ~40dB gain across the band.

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The National Radio Astronomy Observatory and Green Bank Observatory are facilities of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.