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An SIS mixer for 90–120 GHz with gain and wide bandwidth

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Abstract

An SIS mixer for the 3 mm wavelength band has been developed. It has sufficient RF bandwidth to allow double-sideband operation at an IE of 1.4 GHz. Available gain of around 3 dB has been measured, along with mixer temperatures of 20 to 40K (both double sideband). The junctions were fabricated using a lead-alloy technology (Pb−In−Au/oxide/-Pb−Bi). Coupling and tuning structures were integrated onto a quartz substrate along with the junctions. The measurements were made at physical temperatures around 3.1K, achieved with a closed-cycle refrigerator.

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Authors and Affiliations

  1. National Radio Astronomy Observatory, 2015 Ivy Road, 22903, Charlottesville, Virginia

    Larry R. D'Addario

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  1. Larry R. D'Addario
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The National Radio Astronomy Observatory is operated by Associated Universities, Inc. under contract with the National Science Foundation.

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D'Addario, L.R. An SIS mixer for 90–120 GHz with gain and wide bandwidth. Int J Infrared Milli Waves 5, 1419–1442 (1984). https://doi.org/10.1007/BF01009702

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  • DOI: https://doi.org/10.1007/BF01009702

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