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Proceedings Paper

European low-noise MMIC technologies for cryogenic millimetre wave radio astronomical applications
Author(s): Andrea Cremonini; Sergio Mariotti; Luca Valenziano
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Paper Abstract

The Low Noise technology has a paramount relevance on radiotelescopes and radiometers performances. Its influence on sensitivity and temporal stability has a deep impact on obtainable scientific results. As well known, front end active part of scientific instruments are cryocooled in order to drastically reduce the intrinsic thermal noise generated by its electronic parts and consequently increase the sensitivity. In this paper we will describe the obtained results by an Italian Space Agency funded activity. The aim is to validate European MMIC Low Noise technologies and designs for cryogenic environments in the range of millimetre wave. As active device, HEMT (High Electron Mobility Transistor) are considered the best device for high frequency and low noise cryo applications. But not all the semiconductor foundry process are suitable for applications in such environment. Two European Foundries has been selected and two different HEMT based Low Noise Amplifiers have been designed and produced. The main goal of this activity is identify an European technology basement for space and ground based low noise cryogenic applications. Designs, layout, architectures, foundry processes and results will be compared.

Paper Details

Date Published: 5 October 2012
PDF: 7 pages
Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 84522P (5 October 2012); doi: 10.1117/12.925721
Show Author Affiliations
Andrea Cremonini, Istituto Nazionale di Astrofisica (Italy)
Sergio Mariotti, Istituto Nazionale di Astrofisica (Italy)
Luca Valenziano, Istituto Nazionale di Astrofisica (Italy)

Published in SPIE Proceedings Vol. 8452:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI
Wayne S. Holland, Editor(s)

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