Series-Connected Josephson-Effect Mixers For Millimeter-Wave Radiation

Hiroshi Ohta; Toshiaki Matsui; Bokuji Komiyama

doi:10.1117/12.978373

18 November 1989 Series-Connected Josephson-Effect Mixers For Millimeter-Wave Radiation

Hiroshi Ohta, Toshiaki Matsui, Bokuji Komiyama

Proceedings Volume 1039, 13th Intl Conf on Infrared and Millimeter Waves; (1989) https://doi.org/10.1117/12.978373
Event: 13th International Conference on Infrared and Millimeter Waves, 1987, Honolulu, HI, United States

Abstract

Millimeterwave detectors have been made of a series-connected array of Josephson junctions. Each junction of the array responds in phase to radiation and therefore the series-connected array as a whole behaves as if it were a single Josephson junction. When the Josephson junctions have a high critical current density, the IF outputs have sharp peaks at the voltages V = 2NΔ/ne where N is the number of the Josephson junctions in series connection and n is an integer. The subharmonic energy gap structures in voltage-current curves of Josephson junctions come from the Andreev-reflection-assisted-tunneling according to the recent Arnold theories.

Citation Download Citation

Hiroshi Ohta, Toshiaki Matsui, and Bokuji Komiyama "Series-Connected Josephson-Effect Mixers For Millimeter-Wave Radiation", Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1989); https://doi.org/10.1117/12.978373

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