Performance of the ﬁrst ALMA Band 5 production cartridge

Billade, Bhushan, 1982 (author): Chalmers tekniska högskola,Chalmers University of Technology

Nyström, Olle, 1979 (author): Chalmers tekniska högskola,Chalmers University of Technology

Meledin, Denis, 1974 (author): Chalmers tekniska högskola,Chalmers University of Technology

Sundin, Erik, 1979 (author): Chalmers tekniska högskola,Chalmers University of Technology

Lapkin, Igor, 1963 (author): Chalmers tekniska högskola,Chalmers University of Technology

Fredrixon, Mathias, 1972 (author): Chalmers tekniska högskola,Chalmers University of Technology

Desmaris, Vincent, 1977 (author): Chalmers tekniska högskola,Chalmers University of Technology

Marouf Rashid, Hawal, 1982 (author): Chalmers tekniska högskola,Chalmers University of Technology

Strandberg, Magnus, 1975 (author): Chalmers tekniska högskola,Chalmers University of Technology

Ferm, Sven-Erik, 1961 (author): Chalmers tekniska högskola,Chalmers University of Technology

Pavolotskiy, Alexey, 1968 (author): Chalmers tekniska högskola,Chalmers University of Technology

Belitsky, Victor, 1955 (author): Chalmers tekniska högskola,Chalmers University of Technology

(creator_code:org_t)

2011
2011
English.
In: Proceedings of the 22nd International Symposium on Space Terahertz Technology, April 26-28th, 2011 - Tucson, Arizona, USA. ; , s. 56-56

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Abstract Subject headings

We present performance of the ﬁrst ALMA Band 5 production cartridge, covering RF frequencies from 163 GHz to 211 GHz. ALMA Band 5 is a dual polarization, sideband separation (2SB) receiver based on all Niobium (Nb) SuperconductorInsulator-Superconductor (SIS) tunnel junction mixer, providing 16 GHz of instantaneous RF bandwidth for the astronomy observations. The 2SB mixer for each polarization employs a quadrature layout. The sideband separation occurs at the output of the IF hybrid that has integrated bias-T for biasing the mixers, and is produced using superconducting thin ﬁlm technology. Experimental veriﬁcation of the Band 5 cold cartridge performed together with warm cartridge assembly, conﬁrms the system noise temperature below 45 K, less than ﬁve quantum noise (5 hf/k) over most of the RF band, which is to our knowledge, the best results at these frequencies. The measurement of the sideband rejection indicates that the sideband rejection better than 10 dB over 90% of the observational band.

TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

By the author/editor: Billade, Bhushan ...; Nyström, Olle, 1 ...; Meledin, Denis, ...; Sundin, Erik, 19 ...; Lapkin, Igor, 19 ...; Fredrixon, Mathi ...; show more...; Desmaris, Vincen ...; Marouf Rashid, H ...; Strandberg, Magn ...; Ferm, Sven-Erik, ...; Wang, Hui; Xu, Hui; Obrocka, Monika; Ellison, Brian; Pavolotskiy, Ale ...; Belitsky, Victor ...; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Aerospace Engine ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Other Physics To ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Other Materials ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Control Engineer ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Other Electrical ...

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