ALMA band 2+3 (67–116 GHz) optics: design and first measurements

A. Gonzalez, V. Tapia, N. Reyes, F.P. Mena, R. Nesti, F. Villa, F. Cuttaia, A. de Rosa, A. M. di Giorgio, A. Morbidini, P. Yagoubov

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

9 Citations (Scopus)

Abstract

The ALMA telescope is one of the largest on-ground astronomical projects in the world. It has been producing great scientific results since the beginning of operations in 2011. Of all the originally planned bands, band 2 (67-90 GHz) is the last band to be implemented into the array. Recent technological progress has open the possibility to combine bands 2 and 3 (84-116 GHz) into a single wideband receiver. This paper describes the first efforts to design wideband optics which cover both bands, from 67 to 116 GHz, using a profiled corrugated horn and a modified Fresnel lens. First measurements were performed at ESO in Dec15-Jan16 and showed good agreement with simulations.
Original languageEnglish
Title of host publication2016 IEEE International Symposium on Antennas and Propagation (APSURSI)
Place of PublicationPiscataway
PublisherIEEE/LEOS
Pages1195-1196
Number of pages2
ISBN (Electronic)978-1-5090-2886-3
ISBN (Print)978-1-5090-2885-6
DOIs
Publication statusPublished - 1 Jun 2016
Externally publishedYes
Event2016 IEEE International Symposium on Antennas and Propagation (APSURSI) - Fajardo, Puerto Rico
Duration: 26 Jun 20161 Jul 2016

Conference

Conference2016 IEEE International Symposium on Antennas and Propagation (APSURSI)
CountryPuerto Rico
CityFajardo
Period26/06/161/07/16

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