Amplifier, WMAP Cryogenic InP HEMT Low Noise Amplifier

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    Amplifier, WMAP Cryogenic InP HEMT Low Noise Amplifier

    Rectangular light gold hued metallic box with rectangular protrusions and electronic connector

    1 of 2

    Usage Conditions Apply

    There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page.

    IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu

    View Manifest

    View in Mirador Viewer

    Amplifier, WMAP Cryogenic InP HEMT Low Noise Amplifier

    Rectangular light gold hued metallic box with rectangular protrusions and electronic connector

    2 of 2

Display Status:

This object is on display in the Explore the Universe exhibition at the National Air and Space Museum in Washington, DC.

This amplifier is a key electronic component (unflown but flight ready, with a non-flight plug) in the WMAP (Wilkinson Microwave Anisotropy Probe) satellite allowing for low noise amplification of the front end detectors of the Probe without need for sustained active deep cryogenic working environment. It would work to specification when cooled to -90K utilizing passive thermal radiators, which greatly extended the potential lifetime of the mission. Some 80 amplifiers of this basic design were employed on the Probe. These devices were designed, fabricated and rated for flight at the National Radio Astronomy Observatory's Central Development Laboratory in Charlottesville, VA. This microwave technology has also been applied to the NRAO ALMA array.