TY  - CONF
AU  - Cherednichenko, S.
AU  - Kroug, M.
AU  - Khosropanah, P.
AU  - Adam, A.
AU  - Merkel, H.
AU  - Kolberg, E.
AU  - Loudkov, D.
AU  - Voronov, B.
AU  - Gol'tsman, G.
AU  - Richter, H.
AU  - Hübers, H. W.
ED  - Harward University
PY  - 2002
DA  - 2002//
TI  - A broadband terahertz heterodyne receiver with an NbN HEB mixer
T2  - Proc. 13[super:th] Int. Symp. Space Terahertz Technol.
BT  - Proc. 13[super:th] Int. Symp. Space Terahertz Technol.
SP  - 85
EP  - 95
CY  - Cambridge, MA, USA
KW  - NbN HEB mixers
AB  - We present a broadband and low noise heterodyne receiver for 1.4-1.7 THz designed for the Hershel Space Observatory. A phonon- cooled NbN HEB mixer was integrated with a normal metal double- slot antenna and an elliptical silicon lens. DSB receiver noise temperature Tr was measured from 1 GHz through 8GHz intermediate frequency band with 50 MHz instantaneous bandwidth. At 4.2 K bath temperature and at 1.6 THz LO frequency Tr is 800 K with the receiver noise bandwidth of 5 GHz. While at 2 K bath temperature Tr was as low as 700 K. At 0.6 THz and 1.1 THz a spiral antenna integrated NbN HEB mixer showed the receiver noise temperature 500 K and 800 K, though no antireflection coating was used in this case. Tr of 1100 K was achieved at 2.5 THz while the receiver noise bandwidth was 4 GHz.
UR  - https://www.nrao.edu/meetings/isstt/2002.shtml
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=332), last updated on Fri, 21 May 2021 13:20:30 -0500
ID  - Cherednichenko_etal2002
ER  -