TY  - JOUR
AU  - Kawamura, J.
AU  - Blundell, R.
AU  - Tong, C-Y E.
AU  - Papa, D. C.
AU  - Hunter, T. R.
AU  - Paine, S. N.
AU  - Patt, F.
AU  - Gol'tsman, G.
AU  - Cherednichenko, S.
AU  - Voronov, B.
AU  - Gershenzon, E.
PY  - 2000
DA  - 2000//
TI  - Superconductive hot-electron-bolometer mixer receiver for 800-GHz operation
T2  - IEEE Trans. Microw. Theory Techn.
JO  - IEEE Trans. Microw. Theory Techn.
SP  - 683
EP  - 689
VL  - 48
IS  - 4
KW  - NbN HEB mixers
KW  - LO power
KW  - local oscillator power
KW  - saturation
KW  - linearity
KW  - dynamic range
AB  - 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.
SN  - 0018-9480
UR  - http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=841960
UR  - https://doi.org/10.1109/22.841960
DO  - 10.1109/22.841960
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=573), last updated on Mon, 24 May 2021 19:46:54 -0500
ID  - Kawamura_etal2000
ER  -