%0 Journal Article
%T NbN hot electron superconducting mixers for 100 GHz operation
%A Gol'tsman, G. N.
%A Karasik, B. S.
%A Okunev, O. V.
%A Dzardanov, A. L.
%A Gershenzon, E. M.
%A Ekstrom, H.
%A Jacobsson, S.
%A Kollberg, E.
%J IEEE Trans. Appl. Supercond.
%D 1995
%V 5
%N 2
%@ 1051-8223
%F Goltsman_etal1995
%O About LO power required
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=255), last updated on Wed, 26 May 2021 14:20:24 -0500
%X NbN is a promising superconducting material for hot-electron superconducting mixers with an IF bandwidth larger than 1 GHz. In the 1OO GHz frequency range, the following parameters were obtained for 50 /spl Aring/ thick NbN films at 4.2 K: receiver noise temperature (DSB) /spl sim/1000 K; conversion loss /spl sim/10 dB; IF bandwidth /spl sim/1 GHz; and local oscillator power /spl sim/1 /spl mu/W. An increase of the critical current of the NbN film, increased working temperature, and a better mixer matching may allow a broader IF bandwidth up to 2 GHz, reduced conversion losses down to 3-5 dB and a receiver noise temperature (DSB) down to 200-300 K.
%K NbN HEB mixers
%R 10.1109/77.403239
%U http://ieeexplore.ieee.org/document/403239/
%U https://doi.org/10.1109/77.403239
%P 3065-3068