Realization and preliminary measurements on a 94 GHz SIS mixer

In this paper we present the realization and a preliminary characterization of a SIS based receiver. It has been developed for the MASTER experiment that consists in a three-band SIS receiver (94, 225 and 345 GHz) for astrophysical observations through the atmospheric windows available at high altit...

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Bibliographic Details
Published in:arXiv.org 2010-09
Main Authors: Oberto, L, De Leo, N, Fretto, M, Tartari, A, Brunetti, L, Lacquaniti, V
Format: Article
Language:English
Subjects:
Atmospheric windows
High altitude
Noise temperature
Online Access:Get full text
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Summary:In this paper we present the realization and a preliminary characterization of a SIS based receiver. It has been developed for the MASTER experiment that consists in a three-band SIS receiver (94, 225 and 345 GHz) for astrophysical observations through the atmospheric windows available at high altitude dry sites. The measurements performed establish an upper limit to the overall receiver noise temperature. A comparison has been tried with the MASTER requirements and with state of the art results. A noise figure of 110 K has been obtained at 94 GHz, about 22 times the quantum limit.
ISSN:2331-8422
DOI:10.48550/arxiv.1005.1834