%0 Conference Proceedings %T NbN hot electron waveguide mixer for 100 GHz operation %A 0kunev, 0. %A Dzardanov, A. %A Ekstrom, H. %A Jacobsson, S. %A Kollberg, E. %A Gol'tsman, G. %A Gershenzon, E. %S Proc. 5[super:th] Int. Symp. Space Terahertz Technol. %D 1994 %F 0kunev_etal1994 %O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1644), last updated on Wed, 26 May 2021 22:26:49 -0500 %X NbN is a promising superconducting material used to develope hot- electron superconducting mixers with an IF bandwidth over 1 GHz. In the 100 GHz frequency range, the following parameters were obtained for NbN films 50 A thick: the noise temperature of the receiver (DSB) 1000 K; the conversion losses 10 d13, the IF bandwidth 1 GHz; the local oscillator power 1 /LW. An increase of NbN film thickness up to 80-100 A and increase of working temperature up to 7-8 K, and a better mixer matching may allow to broader the IF band up to 3 Gllz, to reduce the conversion losses down to 3-5 dB and the noise tempera- ture down to 200-300 K. %K waveguide NbN HEB mixers %U https://www.nrao.edu/meetings/isstt/1994.shtml %P 214-224