Abstract
The ALMA telescope is one of the largest on-ground astronomical projects in the world. It will perform astronomical observations in all the atmospheric windows from 35 to 950 GHz when completed. The ALMA band 1 (35-52 GHz) receiver is in an advanced development state and production may start soon. As for other bands, the receiver is enclosed in a cryostat, where electronics are cooled down for minimum noise temperature operation. However, in the case of band 1, components are large in comparison with cryostat dimensions and aperture sizes. This makes that the best receiver optics designs have the corrugated feed horn very close to the cryostat infrared (IR) filters. This paper discusses the effects of the IR filters on the performance of the ALMA band 1 receiver optics.
Original language | English |
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Title of host publication | 2016 IEEE International Symposium on Antennas and Propagation (APSURSI) |
Place of Publication | Piscataway |
Publisher | IEEE/LEOS |
Pages | 381-382 |
Number of pages | 2 |
ISBN (Electronic) | 978-1-5090-2886-3 |
ISBN (Print) | 978-1-5090-2887-0 |
DOIs | |
Publication status | Published - 1 Jun 2016 |
Externally published | Yes |
Event | 2016 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2016 - Fajardo, Puerto Rico Duration: 26 Jun 2016 → 1 Jul 2016 |
Conference
Conference | 2016 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2016 |
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Abbreviated title | APSURSI 2016 |
Country/Territory | Puerto Rico |
City | Fajardo |
Period | 26/06/16 → 1/07/16 |