Abstract
We consider recent results in development of hot-electron bolometer mixers. Special attention is paid to optimization of the contacts between the antenna and the active area of a superconducting film. An important result in the study of the parasitic effect of direct detection is obtained during the measurement of the noise temperatures by the hot/cold load method. The latest results of studies of the waveguide hot-electron bolometer mixers and their successful practical applications are considered. Progress in development of high-frequency (over 1.3 THz) heterodyne receivers for several important international projects is discussed and new submillimeter radio astronomy projects ESPRIT and SAFIR are described.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 48, No. 10–11, pp. 964–970, October–November 2005.
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Finkel, M.I., Maslennikov, S.N. & Gol’tsman, G.N. Terahertz heterodyne receivers based on superconductive hot-electron bolometer mixers. Radiophys Quantum Electron 48, 859–864 (2005). https://doi.org/10.1007/s11141-006-0018-0
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DOI: https://doi.org/10.1007/s11141-006-0018-0