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

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

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ijimw...5.1419d&link_type=abstract

International Journal of Infrared and Millimeter Waves (ISSN 0195-9271), vol. 5, Nov. 1984, p. 1419-1442.

Astronomy and Astrophysics

Astronomy

34

Josephson Junctions, Mixing Circuits, Sis (Superconductors), Superconductors, Block Diagrams, Design Analysis, Fabrication, Millimeter Waves, Radio Astronomy

Scientific paper

An SIS mixer for the 3 mm wavelength band has been developed. It has sufficient RF bandwidth to allow double-sideband operation at an IF 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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