Title :
Development of the ALMA-North America sideband-separating SIS mixers
Author :
Kerr, A.R. ; Pan, Shing-Kuo ; Claude, Stephane M. X. ; Dindo, Philip ; Lichtenberger, Arthur W. ; Lauria, Eugene F.
Author_Institution :
Nat. Radio Astron. Obs., Charlottesville, VA, USA
Abstract :
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.
Keywords :
integrated circuit design; integrated circuit noise; superconducting junction devices; superconducting mixers; ALMA-North America sideband-separating SIS mixers; atmospheric noise suppression; dual-polarization receivers; dynamic range; frequency 211 GHz to 275 GHz; frequency 84 GHz to 116 GHz; image band; image rejection; mixers design; return loss; sideband-separating superconducting tunnel-junction mixers; signal-to-image conversion; Amplitude modulation; Impedance; Junctions; Mixers; Radio frequency; Receivers; Temperature measurement; ALMA; Millimeter-wave; SIS junction; heterodyne; image rejecting; interferometer; mixer; radio astronomy; receiver; sideband-separating; superconductor;
Conference_Titel :
Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4673-6177-4
DOI :
10.1109/MWSYM.2013.6697439
