Noise characteristics of a NBN hot-electron mixer at 2.5 THz

Authors :: Semenov, Alex D.
Gousev, Yuri P.
Renk, Karl F.
Voronov, Boris M.
Gol'tsman, Gregory N.
Gershenzon, Evgeny M.
Schwaab, Gerhard W.
Feinaugle, R.
Source :: IEEE Transactions on Applied Superconductivity. June, 1997, Vol. 7 Issue 2, p3572, 4 p.
Publication Year :: 1997
Abstract: A study was conducted on the noise characteristics of a NbN phono-cooled hot-electron mixer operating at a frequency of 2.5 THz. A = 23 dB system conversion loss at intermediate frequencies of up to 1 GHz and a =14000 K double sideband mixer noise temperature were achieved for optimal operation. The mixer temperature noise was found to be dependent on local oscillator power, bias voltage and intermediate frequency.