TY  - JOUR
AU  - Gol'tsman, G. N.
AU  - Karasik, B. S.
AU  - Okunev, O. V.
AU  - Dzardanov, A. L.
AU  - Gershenzon, E. M.
AU  - Ekstrom, H.
AU  - Jacobsson, S.
AU  - Kollberg, E.
PY  - 1995
DA  - 1995//
TI  - NbN hot electron superconducting mixers for 100 GHz operation
T2  - IEEE Trans. Appl. Supercond.
JO  - IEEE Trans. Appl. Supercond.
SP  - 3065
EP  - 3068
VL  - 5
IS  - 2
KW  - NbN HEB mixers
AB  - 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.
SN  - 1051-8223
UR  - http://ieeexplore.ieee.org/document/403239/
UR  - https://doi.org/10.1109/77.403239
DO  - 10.1109/77.403239
N1  - About LO power required
ID  - Goltsman_etal1995
ER  -