%0 Journal Article
%T Superconductive hot-electron-bolometer mixer receiver for 800-GHz operation
%A Kawamura, J.
%A Blundell, R.
%A Tong, C-Y E.
%A Papa, D. C.
%A Hunter, T. R.
%A Paine, S. N.
%A Patt, F.
%A Gol'tsman, G.
%A Cherednichenko, S.
%A Voronov, B.
%A Gershenzon, E.
%J IEEE Trans. Microw. Theory Techn.
%D 2000
%V 48
%N 4
%@ 0018-9480
%F Kawamura_etal2000
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=573), last updated on Mon, 24 May 2021 19:46:54 -0500
%X In this paper, we describe a superconductive hot-electron-bolometer mixer receiver designed to operate in the partially transmissive 350-μm atmospheric window. The receiver employs an NbN thin-film microbridge as the mixer element, in which the main cooling mechanism of the hot electrons is through electron-phonon interaction. At a local-oscillator frequency of 808 GHz, the measured double-sideband receiver noise temperature is TRX=970 K, across a 1-GHz intermediate-frequency bandwidth centered at 1.8 GHz. We have measured the linearity of the receiver and the amount of local-oscillator power incident on the mixer for optimal operation, which is PLO≈1 μW. This receiver was used in making observations as a facility instrument at the Heinrich Hertz Telescope, Mt. Graham, AZ, during the 1998-1999 winter observing season.
%K NbN HEB mixers
%K LO power
%K local oscillator power
%K saturation
%K linearity
%K dynamic range
%R 10.1109/22.841960
%U http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=841960
%U https://doi.org/10.1109/22.841960
%P 683-689