Design and measurement of a direct-drillable smooth walled feedhorn at 1.2 THz for the next generation BLASTPol experiment

Christopher Groppi, Philip Mauskopf, P. A R Ade, M. Underhill

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present the design and measurement of a direct-drillable smooth walled feedhorn for the Next Generation BLASTPol balloon experiment. Custom milling cutters were obtained commercially and used to fabricate a two feedhorn structures with UG-387 flanges, each with 0.5mm section of circular waveguide, which were then mated back to back. These horns were then tested at Cardiff University using a rotation stage scanner to measure E and H plane cuts of the horn. The measurements show good agreement in both the beam FWHM and sidelobes as compared to HFSS simulations of the horn.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII
PublisherSPIE
Volume9914
ISBN (Electronic)9781510602076
DOIs
StatePublished - 2016
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII - Edinburgh, United Kingdom
Duration: Jun 28 2016Jul 1 2016

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII
CountryUnited Kingdom
CityEdinburgh
Period6/28/167/1/16

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Keywords

  • Far Infrared
  • Suborbital, Polarimetry
  • Terahertz
  • Waveguide feedhorns

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Groppi, C., Mauskopf, P., Ade, P. A. R., & Underhill, M. (2016). Design and measurement of a direct-drillable smooth walled feedhorn at 1.2 THz for the next generation BLASTPol experiment. In Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII (Vol. 9914). [99142P] SPIE. https://doi.org/10.1117/12.2231346