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Passive millimeter wave sensor using high temperature superconducting leads

  • US 7,132,655 B2
  • Filed: 12/02/2003
  • Issued: 11/07/2006
  • Est. Priority Date: 12/02/2002
  • Status: Active Grant
First Claim
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1. A radiation sensor comprising:

  • a substrate defining a cavity;

    an antenna coupled to the substrate;

    a thermal detector unit spaced from the antenna and from the substrate;

    a plurality of multi-layered conductive leads in contact with the antenna and the thermal detector unit, wherein each of the conductive leads comprises a superconductive layer in electrical contact with the thermal detector unit and the antenna, a support layer between the superconductive layer and the substrate, and a buffer layer disposed between the support layer and the superconductive layer, said buffer layer defining a thermal conductivity that is less than one order of magnitude greater than a thermal conductivity defined by the superconductive layer, each of said support layers cooperating to suspend the thermal detector unit over the cavity.

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