Alternative optics design for the ALMA band 1 receiver (35-52 GHz)

Alvaro Gonzalez, Valeria Tapia, Ricardo Finger, Shin'Ichiro Asayama, Ted Huang

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

9 Citations (Scopus)


The Atacama Millimeter/Sub-millimeter Array (ALMA) is one of the most powerful telescopes built to date. All the receivers that cover the 10 frequency bands (35-950 GHz) in ALMA must comply with stringent requirements in order to perform astronomical observations, in particular, low noise temperature and high aperture efficiency. The ALMA band 1 receiver optics (35-52 GHz) are composed of a corrugated horn antenna and a dielectric lens. They have proved difficult to design because of the large bandwidth to cover and truncation effects in cryostat apertures. This paper presents a design which meets the stringent ALMA requirements.

Original languageEnglish
Title of host publication2015 9th European Conference on Antennas and Propagation, EuCAP 2015
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)978-8-8907-0185-6
Publication statusPublished - 27 Aug 2015
Externally publishedYes
Event9th European Conference on Antennas and Propagation (EuCAP 2015) - Lisbon, Portugal
Duration: 13 May 201517 May 2015
Conference number: 9


Conference9th European Conference on Antennas and Propagation (EuCAP 2015)
Abbreviated titleEuCAP 2015
Internet address


  • lens
  • mm-wave antenna
  • Radio astronomy


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