Argus: A 16-pixel millimeter-wave spectrometer for the Green Bank Telescope

Matthew Sieth, Kiruthika Devaraj, Patricia Voll, Sarah Church, Rohit Gawande, Kieran Cleary, Anthony C.S. Readhead, Pekka Kangaslahti, Lorene Samoska, Todd Gaier, Paul F. Goldsmith, Andrew I. Harris, Joshua O. Gundersen, David Frayer, Steve White, Dennis Egan, Rodrigo Reeves

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

7 Scopus citations

Abstract

We report on the development of Argus, a 16-pixel spectrometer, which will enable fast astronomical imaging over the 85-116 GHz band. Each pixel includes a compact heterodyne receiver module, which integrates two InP MMIC low-noise amplifiers, a coupled-line bandpass filter and a sub-harmonic Schottky diode mixer. The receiver signals are routed to and from the multi-chip MMIC modules with multilayer high frequency printed circuit boards, which includes LO splitters and IF amplifiers. Microstrip lines on flexible circuitry are used to transport signals between temperature stages. The spectrometer frontend is designed to be scalable, so that the array design can be reconfigured for future instruments with hundreds of pixels. Argus is scheduled to be commissioned at the Robert C. Byrd Green Bank Telescope in late 2014. Preliminary data for the first Argus pixels are presented.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
EditorsJonas Zmuidzinas, Wayne S. Holland
PublisherSPIE
ISBN (Electronic)9780819496218
DOIs
StatePublished - Jan 1 2014
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII - Montreal, Canada
Duration: Jun 24 2014Jun 27 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9153
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
CountryCanada
CityMontreal
Period6/24/146/27/14

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Keywords

  • InP MMIC low-noise amplifiers
  • W-band
  • cryogenic focal plane array
  • millimeter-wave
  • multichip modules
  • spectrometer
  • star formation

ASJC Scopus subject areas

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

Cite this

Sieth, M., Devaraj, K., Voll, P., Church, S., Gawande, R., Cleary, K., Readhead, A. C. S., Kangaslahti, P., Samoska, L., Gaier, T., Goldsmith, P. F., Harris, A. I., Gundersen, J. O., Frayer, D., White, S., Egan, D., & Reeves, R. (2014). Argus: A 16-pixel millimeter-wave spectrometer for the Green Bank Telescope. In J. Zmuidzinas, & W. S. Holland (Eds.), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII [91530P] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9153). SPIE. https://doi.org/10.1117/12.2055655