Development of the ALMA-North America sideband-separating SIS mixers

Development of the ALMA-North America sideband-separating SIS mixers

As ALMA nears completion, 73 dual-polarization receivers have been delivered for each of Bands 3 (84-116 GHz) and 6 (211-275 GHz). The receivers use sideband-separating superconducting tunnel-junction (SIS) mixers, developed for ALMA to suppress atmospheric noise in the image band. The mixers were d...

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Bibliographische Detailangaben
Hauptverfasser: Kerr, A. R., Pan, S.-K, Claude, S. M. X., Dindo, P., Lichtenberger, A. W., Lauria, E. F.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
ALMA
Amplitude modulation
heterodyne
image rejecting
Impedance
interferometer
Junctions
Millimeter-wave
mixer
Mixers
radio astronomy
Radio frequency
receiver
Receivers
sideband-separating
SIS junction
superconductor
Temperature measurement
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Beschreibung
Zusammenfassung:As ALMA nears completion, 73 dual-polarization receivers have been delivered for each of Bands 3 (84-116 GHz) and 6 (211-275 GHz). The receivers use sideband-separating superconducting tunnel-junction (SIS) mixers, developed for ALMA to suppress atmospheric noise in the image band. The mixers were designed taking into account input return loss, dynamic range and signal-to-image conversion (which can degrade the image rejection). Results are given for typical production receivers.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2013.6697439